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Medical Terminology
Intro to Medical Terminology, Chap. 1-5
626
Biology
Undergraduate 2
08/29/2013

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Term
acute care hospital
Definition
Hospitals that typically provide services to diagnose (laboratory, diagnostic imaging) and treat (surgery, medications, therapy) diseases for a short period of time. In addition, they usually provide emergency and obstetrical care. Also called general hospital.
Term
ambulatory care center
Definition
A facility that provides services that do not require overnight hospitalization. The services range from simple surgeries, to diagnostic testing, to therapy. Also called a surgical center or an outpatient clinic.
Term
ancillary reports
Definition
Reports in a patient's medical record from various treatments and therapies the patient has received, such as rehabilitation, social services, respiratory therapy, or from the dietician.
Term
anesthesiologist's report
Definition
A medical record document that relates the details regarding the drugs given to a patient and the patient's response to anesthesia and vital signs during surgery.
Term
combining form
Definition
The word root plus the combining vowel. It is always written with a / between the word root and the combining vowel. For example, in the combining form cardi/o, cardi is the word root and /o is the combining vowel.
Term
combining vowel
Definition
A vowel inserted between word parts that makes it possible to pronounce long medical terms. It is usually the vowel o.
Term
consultation reports
Definition
Documents in a patient's medical record. They are the reports given by specialists who the physician has requested to evaluate the patient.
Term
diagnostic reports
Definition
Found in a patient's medical record. It consists of the results of all diagnostic tests performed on the patient, principally from the lab and medical imaging (for example, X-ray and ultrasound).
Term
discharge summary
Definition
Part of a patient's medical record. It is a comprehensive outline of the patient's entire hospital stay. It includes condition at time of admission, admitting diagnosis, test results, treatments and patient's response, final diagnosis, and follow-up plans.
Term
general hospitals
Definition
Hospitals that typically provide services to diagnose (laboratory, diagnostic imaging) and treat (surgery, medications, therapy) diseases for a short period of time. In addition, they usually provide emergency and obstetrical care. Also called an acute care hospital.
Term
health maintenance organization (HMO)
Definition
An organization that contracts with a group of physicians and other health care workers to provide care exclusively for its members. The HMO pays the health care workers a prepaid fixed amount per member whether that member requires medical attention or not.
Term
history and physical
Definition
Medical record document written by the admitting physician. It details the patient's history, results of the physician's examination, initial diagnoses, and physician's plan of treatment.
Term
home health care
Definition
Agencies that provide nursing, therapy, personal care, or housekeeping services in the patient's own home.
Term
hospice
Definition
An organized group of health care workers that provide supportive treatment to dying patients and their families.
Term
informed consent
Definition
A medical record document, voluntarily signed by the patient or a responsible party, that clearly describes the purpose, methods, procedures, benefits, and risks of a diagnostic or treatment procedure.
Term
long-term care facility
Definition
A facility that provides long-term care for patients who need extra time to recover from an illness or accident before they return home or for persons who can no longer care for themselves. Also called a nursing home.
Term
medical record
Definition
Documents the details of a patient’s hospital stay. Each health care professional that has contact with the patient in any capacity completes the appropriate report of that contact and adds it to the medical chart. This results in a permanent physical record of the patient’s day-to-day condition, when and what services he or she receives, and the response to treatment. Also called a chart.
Term
nurse's notes
Definition
Medical record document that records the patient's care throughout the day. It includes vital signs, treatment specifics, patient's response to treatment, and patient's condition.
Term
nursing home
Definition
A facility that provides long-term care for patients who need extra time to recover from all illness or accident before they return home or for persons who can no longer care for themselves. Also called a long-term care facility.
Term
operative report
Definition
A medical record report from the surgeon detailing an operation. It includes a pre- and postprocedure itself, and how the patient tolerated the procedure.
Term
outpatient clinic
Definition
A facility that provides services that do not require overnight hospitalization. The services range from simple surgeries to diagnostic testing to therapy. Also called an ambulatory care center or a surgical center.
Term
pathologist's report
Definition
A medical record report given by a pathologist who studies tissue removed from the patient (for example: bone marrow, blood, or tissue biopsy).
Term
physician's offices
Definition
Individual or groups of physicians providing diagnostic and treatment services in a private office setting rather than a hospital.
Term
physician's orders
Definition
Medical record document that contains a complete list of the care, medications, tests, and treatments the physician orders for the patient.
Term
physician's progress notes
Definition
Part of a patient's medical record. It is the physician's daily record of the patient's condition, results of the physician's examinations, summary of test results, updated assessment and diagnoses, and further plans for the patient's care.
Term
prefix
Definition
A word part added in front of the word root. It frequently gives information about the location of the organ, the number of parts or the time (frequency). Not all medical terms have a prefix.
Term
rehabilitation centers
Definition
Facilities that provide intensive physical and occupational therapy. They include inpatient and outpatient treatment.
Term
specialty care hospitals
Definition
Hospitals that provide care for very specific types of disease. A good example is a psychiatric hospital.
Term
suffix
Definition
A word part attached to the end of a word. It frequently indicates a condition, disease, or procedure. Almost all medical terms have a suffix.
Term
surgical center
Definition
A facility that provides services that range from simple surgeries to diagnostic testing to therapy and do not require overnight hospitalization. Also called an ambulatory care center or an outpatient clinic.
Term
word root
Definition
The foundation of a medical term that provides the basic meaning of the word. In general, the word root will indicate the body system or part of the body that is being discussed. A word may have more than one word root.
Term
abdominal cavity
Definition
The superior portion of the abdominopelvic cavity.
Term
abdominal region
Definition
One of the anterior regions of the trunk.
Term
abdominopelvic cavity
Definition
A ventral cavity consisting of the abdominal and pelvic cavities. It contains digestive, urinary, and reproductive organs.
Term
adipose tissue
Definition
A type of connective tissue. Also called fat. It stores energy and provides protective padding for underlying structures.
Term
anatomical position
Definition
Used to describe the positions and relationships of a structure in the human body. For descriptive purposes the assumption is always that the person is in the anatomical position. The body is standing erect with the arms at the side of the body, the palms of the hands facing forward, and the eyes looking straight ahead. The legs are parallel with the feet and toes pointing forward.
Term
anterior
Definition
Directional term meaning near or on the front or belly side of the body.
Term
apex
Definition
Directional term meaning tip or summit.
Term
base
Definition
Directional term meaning bottom or lower part.
Term
blood
Definition
The major component of the hematic system. It consists of watery plasma, red blood cells, and white blood cells.
Term
body
Definition
A whole, living individual; the sum of all the cells, tissues, organs, and systems working together to sustain life; the main portion of an organ such as the stomach or uterus.
Term
bone
Definition
A type of connective tissue and an organ of the musculoskeletal system. They provide support for the body and serve as sites of muscle attachments.
Term
brachial region
Definition
The arm regions of the body.
Term
brain
Definition
The brain is one of the largest organs in the body and coordinates most body activities. It is the center for all thought, memory, judgment, and emotion. Each part of the brain is responsible for controlling different body functions, such as temperature regulation and breathing. The four sections to the brain are the cerebrum, cerebellum, diencephalon, and brain stem.
Term
cardiac muscle
Definition
The involuntary muscle found in the heart.
Term
cardiovascular system (CV)
Definition
System that transports blood to all areas of the body. Organs of the cardiovascular system include the heart and blood vessels (arteries, veins, and capillaries). Also called the circulatory system.
Term
cartilage
Definition
strong flexible connective tissue found in several locations in the body, such as covering the ends of bones in a synovial joint, nasal septum, external ear, eustachian tube, larynx, trachea, bronchi, and the intervertebral discs.
Term
caudal
Definition
Directional term meaning toward the feet or tail, or below.
Term
cell
Definition
The basic unit of all living things. All tissues and organs in the body are composed of cells. They perform survival functions such as reproduction, respiration, metabolism, and excretion. Some cells are also able to carry on specialized functions, such as contraction by muscle cells specialized functions, such as contraction by muscle cells and electrical impulse transmission by nerve cells.
Term
cell membrane
Definition
The outermost boundary of the cell.
Term
cephalic
Definition
Directional term meaning toward the head, or above.
Term
cephalic region
Definition
The head region of the body.
Term
cervical region
Definition
The neck region of the body.
Term
connective tissue
Definition
The supporting and protecting tissue in body structures. Examples are fat or adipose tissue, cartilage, and bone.
Term
coronal plane
Definition
A vertical plane that divides the body into front (anterior or ventral) and back (posterior or dorsal) sections. Also called the frontal plane.
Term
coronal section
Definition
Sectional view of the body produced by a cut along the frontal plane; also called a frontal section.
Term
cranial cavity
Definition
A dorsal body cavity. It is within the skull and contains the brain.
Term
cross-section
Definition
An internal view of the body produced by a slice perpendicular to the long axis of the structure.
Term
crural region
Definition
The lower extremity region of the body.
Term
cytology
Definition
The study of cells.
Term
cytoplasm
Definition
The watery internal environment of a cell.
Term
deep
Definition
Directional term meaning away from the surface of the body.
Term
diaphragm
Definition
The major muscle of inspiration. It separates the thoracic from the abdominal cavity.
Term
digestive system
Definition
System that digests food and absorbs nutrients. Organs include the mouth, pharynx, esophagus, stomach, small and large intestines, liver, gallbladder, and anus. Also called the gastrointestinal system.
Term
distal
Definition
Directional term meaning located farthest from the point of attachment to the body.
Term
dorsal
Definition
Directional term meaning near or on the back or spinal cord side of the body.
Term
dorsum
Definition
Refers to the posterior region of back of the body.
Term
endocrine system
Definition
The body system that consists of glands that secrete hormones directly into the blood stream. The endocrine glands include the adrenal glands, parathyroid glands, pancreas, pituitary gland, testes, ovaries, thymus gland, and thyroid gland.
Term
epigastric
Definition
Pertaining to above the stomach. An anatomical division of the abdomen, the middle section of the upper row.
Term
epithelial tissue
Definition
Tissue found throughout the body as the skin, the outer covering of organs, and the inner lining for tubular or hollow structures.
Term
epithelium
Definition
Epithelial tissue composed of close-packed cells that form the covering for and lining of body structures.
Term
female reproductive system
Definition
System responsible for producing eggs for reproduction and provides place for growing baby. Organs include ovaries, fallopian tubes, uterus, vagina, and mammary glands.
Term
frontal plane
Definition
A vertical plane that divides the body into front (anterior or ventral) and back (posterior or dorsal) sections. Also called the coronal plane.
Term
frontal Section
Definition
Sectional view of the body produced by a cut along the frontal plane; also called a coronal section.
Term
gluteal region
Definition
Refers to the buttock region of the body.
Term
hematic system
Definition
The system that consists of plasma and blood cells-erythrocytes, leukocytes, and platelets; responsible for transporting oxygen, protecting against pathogens, and controlling bleeding.
Term
histology
Definition
The study of tissues.
Term
horizontal plane
Definition
A horizontal plane that divides the body into upper (superior) and lower (inferior) sections. Also called the transverse plane.
Term
hypogastric
Definition
Pertaining to below the stomach. An anatomical division of the abdomen, the middle section of the bottom row.
Term
inferior
Definition
Directional term meaning toward the feet or tail, or below.
Term
integumentary system
Definition
The skin and its appendages including sweat glands, oil glands, hair, and nails. Sense organs that allow us to respond to changes in temperature, pain, tough, and pressure are located in the skin. It is the largest organ in the body.
Term
lateral (lat)
Definition
Directional term meaning to the side.
Term
left hypochondriac
Definition
An anatomical division of the abdomen, the left side of the upper row.
Term
left iliac
Definition
An anatomical division of the abdomen, the left side of the upper row.
Term
left lower quadrant (LLQ)
Definition
A clinical division of the abdomen. It contains portions of small and large intestines, left ovary and fallopian tube, and left ureter.
Term
left lumbar
Definition
An anatomical division of the abdomen, the left side of the middle row.
Term
left upper quadrant (LUQ)
Definition
A clinical division of the abdomen. It contains the left lobe of the liver, spleen, stomach, portion of the pancreas, and portion of small and large intestines.
Term
longitudinal section
Definition
An internal view of the body produced by a lengthwise slice along the long axis of a structure.
Term
lower extremity (LE)
Definition
The leg.
Term
lymphatic system
Definition
System that helps the body fight infection. Organs include the spleen, lymph vessels, and lymph nodes.
Term
male reproductive system
Definition
System responsible for producing sperm for reproduction; organs include testes, vas deferens, urethra, prostate gland, and penis.
Term
medial
Definition
Directional term meaning to the middle or near the middle of the body or the structure.
Term
median plane
Definition
Plane that runs lengthwise from front to back and divides the body or any of its parts into right and left portions; also called the sagittal plane.
Term
mediastinum
Definition
The central region of the chest cavity. It contains the organs between the lungs, including the heart, aorta, esophagus, and trachea.
Term
muscle tissue
Definition
Tissue that is able to contract and shorten its length, thereby producing movement. Muscle tissue may be under voluntary control (attached to the bones) or involuntary control (heart and digestive organs).
Term
muscle tissue fibers
Definition
The bundles of muscle tissue that form a muscle.
Term
musculoskeletal system (MS)
Definition
System that provides support for the body and produces movement. Organs of the musculoskeletal system includes muscles, tendons, bones, joints, cartilage.
Term
nerves
Definition
Structures in the nervous system that conduct electrical impulses from the brain and spinal cord to muscles and other organs.
Term
nervous system
Definition
System that coordinates all the conscious and subconscious activities of the body. Organs include the brain, spinal cord, and nerves.
Term
nervous tissue
Definition
Nervous tissue conducts electrical impulses to and from the brain and the rest of the body.
Term
neuron
Definition
The name for an individual nerve cell. Neurons group together to form nerves and other nervous tissue.
Term
nucleus
Definition
Organelle of the cell that contains the DNA.
Term
organ
Definition
A group of different types of tissue coming together to perform special functions. For example, the heart contains muscular fibers, nerve tissue, and blood vessels
Term
parietal
Definition
Term meaning the outermost layer.
Term
parietal peritoneum
Definition
The outer layer of the serous membrane sac lining the abdominopelvic cavity.
Term
parietal pleura
Definition
The outer layer of the serous membrane sac lining the thoracic cavity.
Term
pelvic cavity
Definition
The inferior portion of the abdominopelvic cavity.
Term
pelvic region
Definition
Lowest anterior region of the trunk.
Term
pericardial cavity
Definition
Cavity formed by the serous membrane sac surrounding the heart.
Term
peritoneum
Definition
Membranous sac that lines the abdominal cavity and encases the abdominopelvic organs. The kidneys are an exception since they lay outside the peritoneum and alongside the vertebral column.
Term
pleura
Definition
A protective double layer of serous membrane around the lungs. The parietal membrane is the outer layer and the visceral layer is the inner membrane. It secretes a thin, watery fluid to reduce friction associated with lung movement.
Term
pleural cavity
Definition
Cavity formed by the serous membrane sac surrounding the lungs.
Term
posterior
Definition
Directional term meaning near or on the back or spinal cord side of the body.
Term
prone
Definition
Directional term meaning lying horizontally facing downward.
Term
proximal
Definition
Directional term meaning located closest to the point of attachment to the body.
Term
pubic region
Definition
The genital region of the body.
Term
respiratory system
Definition
System that brings oxygen into the lungs and expels carbon dioxide. Organs include the nose, pharynx, larynx, trachea, bronchial tubes, and lungs.
Term
right hypochondriac
Definition
An anatomical division of the abdomen; the right upper row.
Term
right iliac
Definition
An anatomical division of the abdomen; the right lower row. Also called the right inguinal.
Term
right lower quadrant (RLQ)
Definition
A clinical division of the abdomen. It contains portions of small and large intestines, right ovary and fallopian tube, appendix, right ureter.
Term
right lumbar
Definition
An anatomical division of the abdomen, the right middle row.
Term
right upper quadrant (RUQ)
Definition
A clinical division of the abdomen. It contains the right lobe of the liver, the gallbladder, a portion of the pancreas, and portions of small and large intestine.
Term
sagittal plane
Definition
A vertical plane that divides the body into left and right sections.
Term
sagittal section
Definition
Sectional view of the body produced by a cut along the sagittal plane.
Term
skeletal muscle
Definition
A voluntary muscle that is attached to bones by a tendon.
Term
smooth muscle
Definition
An involuntary muscle found in internal organs such as the digestive organs or blood vessels.
Term
special senses
Definition
The special sense organs perceive environmental conditions. The eyes, ears, nose, and tongue contain special sense organs.
Term
spinal cavity
Definition
A dorsal body cavity within the spinal column that contains the spinal cord.
Term
spinal cord
Definition
The spinal cord provides a pathway for impulses traveling to and from the brain. It is a column of nerve fibers that extends from the medulla oblongata of the brain down to the level of the second lumbar vertebra.
Term
superficial
Definition
Directional term meaning toward the surface of the body.
Term
superior
Definition
Directional term meaning toward the head, or above.
Term
supine
Definition
Directional term meaning lying horizontally and facing upward.
Term
system
Definition
A system is composed of several organs working in a compatible manner to perform a complex function or functions. Examples include the digestive system, the cardiovascular system, and the respiratory system.
Term
tendons
Definition
The strong connective tissue cords that attach skeletal muscles to bones.
Term
thoracic cavity
Definition
A ventral body cavity in the chest area that contains the lungs and heart.
Term
thoracic region
Definition
The chest region of the body.
Term
tissues
Definition
Tissues are formed when cells of the same type are grouped to perform one activity. For example, nerve cells combine to form nerve fibers. There are four types of tissue: nerve, muscle, epithelial, and connective.
Term
transverse plane
Definition
A horizontal plane that divides the body into upper (superior) and lower (inferior) sections. Also called the horizontal plane.
Term
transverse section
Definition
Sectional view of the body produced by a cut along the transverse plane.
Term
trunk
Definition
The torso region of the body.
Term
umbilical
Definition
An anatomical division of the abdomen; the middle section of the middle row.
Term
upper extremity (UE)
Definition
The arm.
Term
urinary system
Definition
System that filters wastes from the blood and excretes the waste products in the form of urine. Organs include the kidneys, ureters, urinary bladder, and urethra.
Term
ventral
Definition
Directional term meaning near or on the front or belly side of the body.
Term
vertebral region
Definition
The spinal column region of the body.
Term
viscera
Definition
The name for the internal organs of the body, such as the lungs, stomach, and liver.
Term
visceral layer
Definition
The inner pleural layer. It adheres to the surface of the lung.
Term
visceral peritoneum
Definition
The inner layer of the serous membrane sac encasing the abdominopelvic viscera.
Term
visceral pleura
Definition
The inner layer of the serous membrane sac encasing the thoracic viscera.
Term
abrasion
Definition
Scraping away a portion of the surface of the skin. Performed to remove acne scars, tattoos, and scar tissue.
Term
abscess
Definition
Swelling of soft tissues of the jaw as a result of infection.
Term
acne
Definition
Inflammatory disease of the sebaceous glands and hair follicles that results in papules and pustules.
Term
acne rosacea
Definition
Hypertrophy of sebaceous glands causing thickened skin generally on the nose, forehead, and cheeks.
Term
acne vulgaris
Definition
A common form of acne occurring in adolescence from an oversecretion of the oil glands. It is characterized by papules, pustules, blackheads, and whiteheads.
Term
adipectomy
Definition
Surgical removal of fat.
Term
albinism
Definition
A condition in which the person not able to produce melanin. An albino person has white hair and skin and the pupils of the eye are red.
Term
allograft
Definition
Skin graft from one person to another; donor is usually a cadaver.
Term
alopecia
Definition
Absence or loss of hair, especially of the head.
Term
anesthetic
Definition
Produces a lack of feeling that may be of local or general effect, depending on the type of administration.
Term
anhidrosis
Definition
Abnormal condition of no sweat.
Term
antibiotic
Definition
Destroys or prohibits the growth of microorganisms. Used to treat bacterial infections. Have not been found to be effective in treating viral infections. To be effective must be taken regularly for a specified period.
Term
antifungals
Definition
Kill fungi infecting the skin.
Term
antiparasitics
Definition
Kill mites or lice.
Term
antipruritics
Definition
Reduce severe itching.
Term
antiseptic
Definition
Used to kill bacteria in skin cuts and wounds or at a surgical site.
Term
anti-virals
Definition
Weaken a viral infection in the body, often by interfering with the virus’s ability to replicate.
Term
apocrine glands
Definition
Type of sweat glands that open into hair follicles located in the pubic, anal, and mammary areas. These glands secrete a substance that can produce an odor when it comes into contact with bacteria on the skin causing what is commonly referred to as body odor.
Term
arrector pili
Definition
A small slip of smooth muscle attached to hairs; when this muscle contracts the hair shaft stands up and results in “goose bumps.”
Term
autograft
Definition
Skin graft from a person's own body.
Term
basal cell carcinoma
Definition
Tumor of the basal cell layer of the epidermis. A frequent type of skin cancer that rarely metastasizes or spreads. These cancers can arise on sunexposed skin.
Term
basal layer
Definition
The deepest layer of the epidermis. This living layer constantly multiplies and divides to supply cells to replace the cells that are sloughed off the skin surface.
Term
biopsy (BX, bx)
Definition
A piece of tissue is removed by syringe and needle, knife, punch, or brush to examine under a microscope. Used to aid in diagnosis.
Term
burn
Definition
A full-thickness burn exists when all the layers are burned; also called a third-degree burn. A partial-thickness burn exists when the first layer of skin, the epidermis, is burned, and the second layer of skin, dermis, is damaged; also called a second-degree burn.
Term
carbuncle
Definition
Inflammation and infection of the skin and hair follicle that may result from several untreated boils. Most commonly found on neck, upper back, or head.
Term
cauterization
Definition
Destruction of tissue using an electric current, a caustic product, or a hot iron, or by freezing.
Term
cellulitis
Definition
Inflammation of the cellular or connective tissues.
Term
chemabrasion
Definition
Abrasion using chemicals; also called a chemical peel.
Term
cicatrix
Definition
A scar.
Term
collagen
Definition
An insoluble fibrous protein present in connective tissue that forms a flexible mat to protect the skin and other parts of the body.
Term
comedo
Definition
Medical term for a blackhead. It is an accumulation of sebum in a sebaceous gland that has become blackened.
Term
contusion
Definition
Injury caused by a blow to the body; causes swelling, pain, and bruising; the skin is not broken.
Term
corium
Definition
The living layer of skin located between the epidermis and the subcutaneous tissue. Also referred to as the dermis, it contains hair follicles, sweat glands, sebaceous glands, blood vessels, lymph vessels, nerve fibers, and muscle fibers.
Term
corticosteroid cream
Definition
A powerful anti-inflammatory cream.
Term
cryosurgery
Definition
Exposing tissues to extreme cold in order to destroy them. Used in treating malignant tumors, and to control pain and bleeding.
Term
culture and sensitivity (CS)
Definition
A laboratory test in which a colony of pathogens that have been removed from an infected area are grown to identify the pathogen and then determine its sensitivity to a variety of antibiotics.
Term
curettage
Definition
Removal of superficial skin lesions with a curette (surgical instrument shaped like a spoon) or scraper.
Term
cutaneous membrane
Definition
This is another term for the skin.
Term
cuticle
Definition
The thin skin-like layer overlapping the base of a nail.
Term
cyanosis
Definition
Slightly bluish color of the skin due to a deficiency of oxygen and an excess of carbon dioxide in the blood. It is caused by a variety of disorder, ranging from chronic lung disease to congenital and chronic heart problems.
Term
cyst
Definition
Fluid-filled sac under the skin.
Term
debridement
Definition
Removal of foreign material and dead or damaged tissue from a wound.
Term
decubitus ulcers
Definition
Bedsores or pressure sores caused by pressure over bony prominences on the body. They are caused by a lack of blood flow.
Term
depigmentation
Definition
Loss of normal skin color or pigment.
Term
dermabrasion
Definition
Abrasion or rubbing using wire brushes or sandpaper.
Term
dermatitis
Definition
Inflammation of the skin.
Term
dermatologist
Definition
A physician specialized in the diagnosis and treatment of diseases of the integumentary system.
Term
dermatology
Definition
The branch of medicine specializing in conditions of the integumentary system
Term
dermatome
Definition
Instrument for cutting the skin or thin transplants of skin.
Term
dermatopathy
Definition
General term for skin disease.
Term
dermatoplasty
Definition
The surgical repair of the skin.
Term
dermatosis
Definition
Abnormal condition of the skin.
Term
dermis
Definition
The living layer of skin located between the epidermis and the subcutaneous tissue. It is also referred to as the corium or the true skin. It contains hair follicles, sweat glands, sebaceous glands, blood vessels, lymph vessels, nerve fibers, and muscle fibers.
Term
diaphoresis
Definition
Excessive or profuse sweating.
Term
dry gangrene
Definition
Late stages of gangrene characterized by the affected area becoming black and leathery.
Term
ecchymosis
Definition
Skin discoloration or bruise caused by blood collecting under the skin.
Term
eczema
Definition
Superficial dermatitis accompanied by papules, vesicles, and crusting.
Term
electrocautery
Definition
To destroy tissue with an electric current.
Term
electrolysis
Definition
Using an electrical current to permanently damage hair follicles and prevent hair regrowth.
Term
epidermal
Definition
Pertaining to upon the skin.
Term
epidermis
Definition
The superficial layer of skin. It is composed of squamous epithelium cells. These are flat scale-like cells that are arranged in layers, called stratified squamous epithelium. The many layers of the epidermis create a barrier to infection. The epidermis does not have a blood supply, so it is dependent on the deeper layers of skin for nourishment. However, the deepest epidermis layer is called the basal layer. These cells are alive and constantly dividing. Older cells are pushed out toward the surface by new cells forming beneath. During this process, they shrink and die, becoming filled with a protein called keratin. The keratin-filled cells are sloughed off as dead cells.
Term
erythema
Definition
Redness or flushing of the skin.
Term
erythroderma
Definition
Red skin.
Term
eschar
Definition
A thick layer of dead tissue and tissue fluid that develops over a deep burn area.
Term
exfoliative cytology
Definition
Scraping cells from tissue and then examining them under a microscope.
Term
fissure
Definition
A deep groove or slit-type opening.
Term
free edge
Definition
The exposed edge of a nail that is trimmed when nails become too long.
Term
frozen section (FS)
Definition
A thin piece of tissue is cut from a frozen specimen for rapid examination under a microscope.
Term
fungal scrapings
Definition
Scrapings, taken with a curette or scraper, of tissue from lesions are placed on a growth medium and examined under a microscope to identify fungal growth.
Term
furuncle
Definition
Staphylococcal skin abscess with redness, pain, and swelling. Also called a boil.
Term
gangrene
Definition
Necrosis of the skin usually due to deficient blood supply.
Term
hair
Definition
A structure in the integumentary system.
Term
hair follicle
Definition
Cavities in the dermis that contain the hair root. Hair grows longer from the root.
Term
hair root
Definition
Deeper cells that divide to grow a hair longer.
Term
hair shaft
Definition
Older keratinized cells that form most of the length of a hair.
Term
heterograft
Definition
Skin graft from an animal of another species (usually a pig) to a human; also called a xenograft.
Term
hirsutism
Definition
Excessive hair growth over the body.
Term
hyperemia
Definition
Redness of the skin caused by increased blood flow to the skin.
Term
hyperhidrosis
Definition
Abnormal condition of excessive sweat.
Term
hyperpigmentation
Definition
Abnormal amount of pigmentation in the skin, which is seen in diseases such as acromegaly and adrenal insufficiency.
Term
hypodermic
Definition
Pertaining to under the skin.
Term
hypodermis
Definition
The deepest layer of skin; composed primarily of adipose.
Term
ichthyoderma
Definition
Dry and scaly skin condition.
Term
ichthyosis
Definition
Condition in which the skin becomes dry, scaly, and keratinized.
Term
impetigo
Definition
A highly contagious staphylococcal skin infection, most commonly occurring on the faces of children. It begins as blisters that then rupture and dry into a thick, yellow crust.
Term
incision and drainage (I & D)
Definition
Making an incision to create an opening for the drainage of material such as pus.
Term
integument
Definition
Another term for skin.
Term
integumentary system
Definition
The skin and its appendages including sweat glands, oil glands, hair, and nails. Sense organs that allow us to respond to changes in temperature, pain, touch, and pressure are located in the skin. It is the largest organ in the body.
Term
intradermal
Definition
Pertaining to within the skin.
Term
Kaposi's sarcoma
Definition
Form of skin cancer frequently seen in acquired immunodeficiency syndrome (AIDS) patients. Consists of brownish-purple papules that spread from the skin and metastasize to internal organs.
Term
keloid
Definition
Formation of a scar after an injury or surgery that results in a raised, thickened red area.
Term
keratin
Definition
A hard protein substance produced by the body. It is found in hair and nails, and filling the inside of epidermal cells.
Term
keratosis
Definition
Overgrowth and thickening of the epithelium.
Term
laser therapy
Definition
Removal of skin lesions and birthmarks using a laser beam that emits intense heat and power at a close range. The laser converts frequencies of light into one small, powerful beam.
Term
lesion
Definition
A general term for a wound, injury, or abnormality.
Term
leukoderma
Definition
Disappearance of pigment from the skin in patches, causing a milk-white appearance. Also called vitiligo.
Term
lipectomy
Definition
Surgical removal of fat.
Term
lipocytes
Definition
Medical term for cells that contain fat molecules.
Term
lipoma
Definition
Fatty tumor that generally does not metastasize.
Term
liposuction
Definition
Removal of fat beneath the skin by means of suction.
Term
lunula
Definition
The lighter colored, half-moon region at the base of a nail.
Term
macule
Definition
Flat, discolored area that is flush with the skin surface. An example would be a freckle or a birthmark.
Term
male pattern baldness
Definition
Genetically determined pattern of progressive hair loss. It begins with a receding hairline at the forehead and eventually leads to loss of hair on the top of the head
Term
malignant melanoma
Definition
Malignant, darkly pigmented tumor or mole of the skin.
Term
melanin
Definition
The black color pigment in the skin. It helps to prevent the sun's ultraviolet rays from entering the body.
Term
melanocytes
Definition
Special cells in the basal layer of the epidermis. They contain the black pigment melanin that gives skin its color and protects against the ultraviolet rays of the sun.
Term
melanoma
Definition
Also called malignant melanoma. A dangerous form of skin cancer caused by an overgrowth of melanin in a melanocyte. It may metastasize or spread. Exposure to ultraviolet light is a risk factor for developing melanoma.
Term
nail body
Definition
Flat plate of keratin that forms most of the nails.
Term
nail root
Definition
Base of a nail; nails grow longer from the root.
Term
nailbed
Definition
Connects nail body to connective tissue underneath.
Term
nails
Definition
A structure in the integumentary system.
Term
necrosis
Definition
Dead tissue.
Term
nevus
Definition
Pigmented (colored) congenital skin blemish, birthmark or mole. Usually benign but may become cancerous.
Term
nodule
Definition
Solid, raised group of cells.
Term
onychectomy
Definition
Excision of a nail.
Term
onychia
Definition
Infected nailbed.
Term
onychomalacia
Definition
Softening of nails.
Term
onychomycosis
Definition
Abnormal condition of nail fungus.
Term
onychophagia
Definition
Nail biting.
Term
pallor
Definition
Abnormal paleness of the skin.
Term
papule
Definition
Small, solid, circular raised spot on the surface of the skin, often as a result of an inflammation in an oil gland.
Term
paronychia
Definition
Infection around a nail.
Term
pathogens
Definition
Disease-bearing organisms.
Term
pediculosis
Definition
Infestation with lice.
Term
perspiration
Definition
Another term for sweating.
Term
petechiae
Definition
Flat, pinpoint, purplish spots from bleeding under the skin.
Term
photosensitivity
Definition
Condition in which the skin reacts abnormally when exposed to light such as the ultraviolet rays of the sun.
Term
plastic surgery
Definition
Surgical specialty involved in repair, reconstruction, or improvement of body structures such as the skin that are damaged, missing, or misshapen. Physician is a plastic surgeon.
Term
pruritus
Definition
Severe itching.
Term
psoriasis
Definition
Chronic inflammatory condition consisting of crusty papules forming patches with circular borders.
Term
purpura
Definition
Hemorrhages into the skin and mucous membranes.
Term
purulent
Definition
Pus-filled sputum, which can be the result of infection.
Term
pustule
Definition
Raised spot on the skin containing pus.
Term
pyoderma
Definition
Pus producing skin infection.
Term
pyogenic
Definition
Pus-forming.
Term
rhytidectomy
Definition
Surgical removal of excess skin to eliminate wrinkles. Commonly referred to as a facelift.
Term
rhytidoplasty
Definition
Excision of wrinkles.
Term
rubella
Definition
Contagious viral skin infection; commonly called German measles.
Term
scabies
Definition
Contagious skin disease caused by an egg-laying mite that causes intense itching; often seen in children.
Term
scleroderma
Definition
Disorder in which the skin becomes taut, thick, and leather-like.
Term
sebaceous cyst
Definition
Sac under the skin filled with sebum or oil from a sebaceous gland. This can grow to a large size and may need to be excised.
Term
sebaceous gland
Definition
Also called oil glands. They produce a substance called sebum that lubricates the skin surface.
Term
seborrhea
Definition
Excessive discharge of sebum.
Term
sebum
Definition
Thick oily substance secreted by sebaceous glands that lubricates the skin to prevent drying out. When sebum accumulates, it can cause congestion in the sebaceous glands and whiteheads or pimples may form. When the sebum becomes dark it is referred to as a comedo or blackhead.
Term
sensory receptors
Definition
Nerve fibers that are located directly under the surface of the skin. These receptors detect temperature, pain, touch, and pressure. The messages for these sensations are conveyed to the brain and spinal cord from the nerve endings in the skin.
Term
skin
Definition
The major organ of the integumentary system. It forms a barrier between the external and internal environments.
Term
skin graft
Definition
The transfer of skin from a normal area to cover another site. Used to treat burn victims and after some surgical procedures.
Term
squamous cell carcinoma
Definition
Epidermal cancer that may go into deeper tissue but does not generally metastasize.
Term
stratified squamous epithelium
Definition
Describes the layers of flat or scale-like cells found in the epidermis. Stratified means multiple layers and squamous means flat.
Term
strawberry hemangioma
Definition
Congenital collection of dilated blood vessels causing a red birthmark that fades a few months after birth.
Term
subcutaneous
Definition
Pertaining to under the skin.
Term
subcutaneous layer
Definition
This is the deepest layer of the skin where fat is formed. This layer of fatty tissue protects the deeper tissues of the body and acts as an insulation for heat and cold.
Term
sudoriferous glands
Definition
The typical sweat glands of the skin.
Term
suppurative
Definition
Containing or producing pus.
Term
sweat duct
Definition
Duct leading from a sweat gland to the surface of the skin; carries sweat.
Term
sweat glands
Definition
Glands that produce sweat, which assists the body in maintaining its internal temperature by creating a cooling effects when it evaporates.
Term
sweat pore
Definition
The surface opening of a sweat duct.
Term
systemic lupus erythematosus (SLE)
Definition
Chronic disease of the connective tissue that injures the skin, joints, kidneys, nervous system, and mucous membranes. May produce a characteristic butterfly rash across the cheeks and nose.
Term
tinea
Definition
Fungal skin disease resulting in itching, scaling lesions.
Term
tinea capitis
Definition
Fungal infection of the scalp; commonly called ringworm.
Term
tinea pedis
Definition
Fungal infection of the foot; commonly called athlete's foot.
Term
trichomycosis
Definition
Abnormal condition of hair fungus.
Term
ulcer
Definition
Open sore or lesion in skin or mucous membrane.
Term
ungual
Definition
Pertaining to the nails.
Term
urticaria
Definition
Hives, a skin eruption of pale reddish wheals (circular elevations of the skin) with severe itching. Usually associated with food allergy, stress, or drug reactions.
Term
varicella
Definition
Contagious viral skin infection; commonly called chickenpox.
Term
verruca
Definition
Warts; a benign neoplasm (tumor) caused by a virus. Has a rough surface that is removed by chemicals and/or laser therapy.
Term
vesicle
Definition
Small, fluid-filled raised spot on the skin.
Term
vitiligo
Definition
Disappearance of pigment from the skin in patches, causing a milk-white appearance. Also called leukoderma.
Term
wet gangrene
Definition
Area of gangrene becoming infected by pus-producing bacteria.
Term
wheal
Definition
Small, round raised area on the skin that may be accompanied by itching.
Term
xenograft
Definition
Skin graft from an animal of another species (usually pig); also called heterograft.
Term
xeroderma
Definition
Dry skin.
Term
abduction
Definition
Directional term meaning to move away from the median or middle line of the body.
Term
action
Definition
The type of movement a muscle produces.
Term
adduction
Definition
Directional term meaning to move toward the median or middle line of the body.
Term
adhesion
Definition
Scar tissue forming in the fascia surrounding a muscle making it difficult to stretch the muscle.
Term
amputation
Definition
Partial or complete removal of a limb for a variety of reasons, including tumors, gangrene, intractable pain, crushing injury, or uncontrollable infection.
Term
ankylosing spondylitis
Definition
Inflammatory spinal condition that resembles rheumatoid arthritis; results in gradual stiffening and fusion of the vertebrae; more common in men than women.
Term
antagonistic pairs
Definition
Pair of muscles arranged around a joint that produce opposite actions.
Term
appendicular skeleton
Definition
The appendicular skeleton consists of the bones of the upper and lower extremities, shoulder, and pelvis.
Term
arthralgia
Definition
Pain in a joint.
Term
arthritis
Definition
Inflammation of a joint that is usually accompanied by pain and swelling. A chronic disease.
Term
arthrocentesis
Definition
Removal of synovial fluid with a needle from a joint space, such as in the knee, for examination.
Term
arthroclasia
Definition
Surgically breaking loose a stiffened joint.
Term
arthrodesis
Definition
Surgical fusion or stiffening of a joint to provide stability. This is sometimes done to relieve the pain of arthritis.
Term
arthrogram
Definition
Record of a joint.
Term
arthrography
Definition
Visualization of a joint by radiographic study after injection of a contrast medium into the joint space.
Term
arthroscope
Definition
Instrument to view inside a joint.
Term
arthroscopic surgery
Definition
Use of an arthroscope to facilitate performing surgery on a joint.
Term
arthroscopy
Definition
Examination of the interior of a joint by entering the joint with an arthroscope. The arthroscope contains a small television camera that allows the physician to view the interior of the joint on a monitor during the procedure.
Term
arthrotomy
Definition
Surgically cutting into a joint.
Term
articular cartilage
Definition
Layer of cartilage covering the ends of bones forming a synovial joint.
Term
articulation
Definition
Another term for a joint, the point where two bones meet.
Term
atonia
Definition
Lack of tone.
Term
atrophy
Definition
Lack or loss of normal development.
Term
axial skeleton
Definition
The axial skeleton includes the bones in the head, spine, chest, and trunk.
Term
biceps
Definition
An arm muscle named for the number of attachment points. Bi- means two and biceps have two heads attached to the bone.
Term
bone
Definition
A type of connective tissue and an organ of the musculoskeletal system. They provide support for the body and serve as sites of muscle attachments.
Term
bone graft
Definition
Piece of bone taken from the patient and used to replace a removed bone or a bony defect at another site.
Term
bone marrow
Definition
Soft tissue found inside cavities in bones; produces blood cells.
Term
bone reabsorption inhibitors
Definition
Conditions that result in weak and fragile bones, such as osteoporosis and Paget's disease, are improved by medications that reduce the reabsorption of bones.
Term
bone scan
Definition
Patient is given a radioactive dye and then scanning equipment is used to visualize bones. It is especially useful in observing the progress of treatment for osteomyelitis and cancer metastases to the bone.
Term
bradykinesia
Definition
Slow movement, commonly seen with the rigidity of Parkinson's disease.
Term
bunion
Definition
Inflammation of the bursa of the great toe.
Term
bunionectomy
Definition
Removal of the bursa at the joint of the great toe.
Term
bursa
Definition
A sac-like connective tissue structure found in some joints. It-protects moving parts from friction. Some common bursa locations are the elbow, knee, and shoulder joints.
Term
bursectomy
Definition
Excision of a bursa.
Term
bursitis
Definition
Inflammation of a bursa between bony prominences and muscles or tendons. Common in the shoulder and knee.
Term
calcium supplements
Definition
Maintaining high blood levels of calcium in association with vitamin D helps maintain bone density and treats osteomalacia, osteoporosis, and rickets.
Term
callus
Definition
The mass of bone tissue that forms at a fracture site during its healing.
Term
cancellous bone
Definition
The bony tissue found inside a bone. It contains cavities that hold red bone marrow. Also called spongy bone.
Term
cardiac muscle
Definition
The involuntary muscle found in the heart.
Term
carpal tunnel release
Definition
Surgical cutting of the ligament in the wrist to relieve nerve pressure caused by carpal tunnel disease, which can be caused by repetitive motion such as typing.
Term
carpal tunnel syndrome
Definition
A painful disorder of the wrist and hand, induced by compression of the median nerve as it passes under ligaments on the palm side of the wrist. Symptoms include weakness, pain, burning, tingling, and aching in the forearm, wrist, and hand.
Term
carpals
Definition
The wrist bones in the upper extremity.
Term
cartilage
Definition
Strong, flexible connective tissue found in several locations in the body, such as covering the ends of bones in a synovial joint, nasal septum, external ear, eustachian tube, larynx, trachea, bronchi, and the intervertebral discs.
Term
cartilaginous joint
Definition
A joint that allows slight movement but holds bones firmly in place by a solid piece of cartilage. The public symphysis is an example of a cartilaginous joint. The fetal skeleton is composed of cartilaginous tissue.
Term
cast
Definition
Application of a solid material to immobilize an extremity or portion of the body as a result of a fracture, dislocation, or severe injury. It is most often made of plaster of paris.
Term
cervical
Definition
Pertaining to the neck.
Term
cervical vertebrae
Definition
The seven vertebrae in the neck region.
Term
chondrectomy
Definition
Excision of cartilage.
Term
chondromalacia
Definition
Softening of cartilage.
Term
chondroplasty
Definition
Surgical repair of cartilage.
Term
circumduction
Definition
Movement in a circular direction from a central point.
Term
clavicle
Definition
Also called the collar bone. A bone of the pectoral girdle.
Term
clavicular
Definition
Pertaining to the clavicle or collar bone.
Term
closed fracture (simple fracture)
Definition
A fracture with no open skin or wound.
Term
coccygeal
Definition
Pertaining to the coccyx or tailbone.
Term
coccyx
Definition
The tailbone, the four small fused vertebrae at the distal end of the vertebral column.
Term
Colles' fracture
Definition
A specific type of wrist fracture.
Term
comminuted fracture
Definition
A fracture in which the bone is shattered, splintered, or crushed into many pieces or fragments. The fracture is completely through the bone.
Term
compact bone
Definition
The hard exterior surface bone. Also called cortical bone.
Term
compound fracture
Definition
An open fracture in which the skin has been broken through by the fracture.
Term
compression fracture
Definition
Fracture involving loss of height of a vertebral body.
Term
condyle
Definition
Refers to the rounded portion at the end of a bone.
Term
contracture
Definition
An abnormal shortening of a muscle making it difficult to stretch the muscle.
Term
cortical
Definition
Pertaining to the cortex.
Term
cortical bone
Definition
The hard exterior surface bone. Also called compact bone.
Term
corticosteroids
Definition
General term for the group of hormones secreted by the adrenal cortex. They include mineralocorticoid hormones, glucocorticold hormones, and steroid sex hormones.
Term
costal
Definition
Pertaining to the ribs.
Term
cranial
Definition
Pertaining to the skull.
Term
craniotomy
Definition
Incision into the skull.
Term
cranium
Definition
The skull; bones that form a protective covering over the brain.
Term
creatine phosphokinase (CPK)
Definition
A muscle enzyme found in skeletal muscle and cardiac muscle; blood test becomes elevated in disorders such as heart attack, muscular dystrophy, and other skeletal muscle pathologies.
Term
crepitation
Definition
Sound of broken bones rubbing together.
Term
deep tendon reflex (DTR)
Definition
Muscle contraction in response to a stretch caused by striking the muscle tendon with a reflex hammer; test used to determine if muscles are responding properly.
Term
diaphysis
Definition
The shaft portion of a long bone.
Term
dislocation
Definition
Occurs when the bones in a joint are displaced from their normal alignment.
Term
dorsiflexion
Definition
Backward bending, as of hand or foot.
Term
dual-energy absorptiometry
Definition
Measurement of bone density using low dose x-ray for the purpose of detecting osteoporosis.
Term
dyskinesia
Definition
Difficult or painful movement.
Term
dystonia
Definition
Abnormal tone.
Term
electromyogram (EMG)
Definition
Record of muscle electricity.
Term
electromyography
Definition
Recording of the electrical patterns of a muscle in order to diagnose diseases.
Term
elevation
Definition
A muscle action that raises a body part, as in shrug the shoulders.
Term
epicondyle
Definition
A projection located above or on a condyle.
Term
epiphysis
Definition
The wide ends of a long bone.
Term
ethmoid bone
Definition
A cranial bone.
Term
eversion
Definition
Directional term meaning turning outward.
Term
Ewing's sarcoma
Definition
Malignant growth found in the shaft of long bones that spreads through the periosteum. Removal is treatment of choice, as this tumor will metastasize or spread to other organs.
Term
exostosis
Definition
A bone spur.
Term
extension
Definition
Movement that brings limb into or toward a straight condition.
Term
extensor carpi
Definition
A muscle named for its action, extension.
Term
external oblique
Definition
A muscle named for the direction of its fibers, on an oblique angle.
Term
facial bones
Definition
The skull bones that surround the mouth, nose, and eyes; muscles for chewing are attached to the facial bones.
Term
fascia
Definition
Connective tissue that wraps muscles. It tapers at each end of a skeletal muscle to form tendons.
Term
fascial
Definition
Pertaining to fascia.
Term
fasciitis
Definition
Inflammation of fascia.
Term
fasciotomy
Definition
Incision into fascia.
Term
femoral
Definition
Pertaining to the femur or thigh bone.
Term
femur
Definition
Also called the thigh bone. It is a lower extremity bone.
Term
fibromyalgia
Definition
A condition with widespread aching and pain in the muscles and soft tissue.
Term
fibrous joint
Definition
A joint that has almost no movement because the ends of the bones are joined together by thick fibrous tissue. The sutures of the skull are an example of a fibrous joint.
Term
fibula
Definition
One of the lower leg bones in the lower extremity.
Term
fibular
Definition
Pertaining to the fibula, a lower leg bone.
Term
fissure
Definition
A deep groove or slit-type opening.
Term
fixation
Definition
A procedure to stabilize a fractured bone while it heals. External fixation includes casts, splints, and pins inserted through the skin. Internal fixation includes pins, plates, rods, screws, and wires that are applied during an open reduction.
Term
flat bone
Definition
A type of bone with a thin flattened shape. Examples include the scapula, ribs, and pelvic bones.
Term
flexion
Definition
Act of bending or being bent.
Term
flexor carpi
Definition
A muscle named for its action, flexion.
Term
foramen
Definition
A passage or opening through a bone for nerves and blood vessels.
Term
fossa
Definition
A shallow cavity or depression within or on the surface of a bone.
Term
fracture
Definition
An injury to a bone that causes it to break. Fractures are named to describe the type of damage to the bone.
Term
frontal bone
Definition
The forehead bone of the skull.
Term
ganglion cyst
Definition
Knot-like mass of nerve tissue located outside the brain and spinal cord.
Term
gluteus maximus
Definition
A muscle named for its size and location: gluteus means rump area and maximus means large.
Term
greenstick fracture
Definition
Fracture in which there is an incomplete break; one side of the bone is broken and the other side is bent. This type of fracture is commonly found in children due to their softer and more pliable bone structure.
Term
head
Definition
The large ball-shaped end of a bone. It may be separated from the shaft of the bone by an area called the neck.
Term
herniated nucleus pulposus (HNP)
Definition
A rupture of the fibrocartilage disk between two vertebrae. This results in pressure on a spinal nerve and causes pain, weakness, and nerve damage. Also called a slipped disk.
Term
humeral
Definition
Pertaining to the humerus or upper arm bone.
Term
humerus
Definition
The upper arm bone in the upper extremity.
Term
hyoid bone
Definition
A singe, U-shaped bone suspended in the neck between the mandible and larynx. It is a point of attachment for swallowing and speech muscles.
Term
hyperkinesia
Definition
An excessive amount of movement.
Term
hypertonia
Definition
Excessive tone.
Term
hypertrophy
Definition
An increase in the bulk or size of a tissue or structure.
Term
hypokinesia
Definition
Insufficient movement.
Term
iliac
Definition
Pertaining to the ilium; one of the pelvic bones.
Term
ileum
Definition
The third portion of the small intestines. Joins the colon at the cecum. The ileum and cecum are separated by the ileocecal valve.
Term
impacted fracture
Definition
Fracture in which bone fragments are pushed into each other.
Term
innominate bone
Definition
Also called the os coxae or hip bone. It is the pelvis portion of the lower extremity. It consists of the ilium, ischium, and pubis and unites with the sacrum and coccyx to form the pelvis.
Term
insertion
Definition
The attachment of a skeletal muscle to the more movable bone in the joint.
Term
intermittent claudication
Definition
Attacks of severe pain and lameness caused by ischemia of the muscles, typically the calf muscles; brought on by walking even very short distances.
Term
intervertebral
Definition
Pertaining to between vertebrae.
Term
intracranial
Definition
Pertaining to inside the skull.
Term
inversion
Definition
Directional term meaning turning inward or inside out.
Term
involuntary muscles
Definition
Muscles under the control of the subconscious regions of the brain. The smooth muscles found in internal organs and cardiac muscles are examples of involuntary muscle tissue.
Term
irregular bones
Definition
A type of bone having an irregular shape. Vertebrae are irregular bones.
Term
ischial
Definition
Pertaining to the ischium, one of the pelvic bones.
Term
ischium
Definition
One of the three bones that form the os coxae or innominate bone of the pelvis.
Term
joint
Definition
The point at which two bones meet. It provides flexibility.
Term
kyphosis
Definition
Abnormal increase in the outward curvature of the thoracic spine. Also known as hunchback or humpback.
Term
lacrimal bone
Definition
A facial bone.
Term
laminectomy
Definition
Removal of a portion of a vertebra in order to relieve pressure on the spinal nerve.
Term
lateral epicondylitis
Definition
Inflammation of the muscle attachment to the lateral epicondyle of the elbow; often caused by strongly gripping. Commonly called tennis elbow.
Term
ligaments
Definition
Very strong bands of connective tissue that bind bones together at a joint.
Term
long bone
Definition
A type of bone that is longer than it is wide. Examples include the femur, humerus, and phalanges.
Term
lordosis
Definition
Abnormal increase in the forward curvature of the lumbar spine. Also known as swayback.
Term
lower extremity (LE)
Definition
The leg.
Term
lumbar
Definition
Pertaining to the five low back vertebrae.
Term
lumbar vertebrae
Definition
The five vertebrae in the low back region.
Term
mandible
Definition
The lower jawbone.
Term
mandibular
Definition
Pertaining to the mandible or lower jaw.
Term
maxilla
Definition
The upper jawbone.
Term
maxillary
Definition
Pertaining to the maxilla or upper jaw.
Term
medullary cavity
Definition
The large open cavity that extends the length of the shaft of a long bone; contains yellow bone marrow.
Term
metacarpals
Definition
The hand bones in the upper extremity.
Term
metacarpals
Definition
The hand bones in the upper extremity.
Term
metatarsals
Definition
The ankle bones in the lower extremity.
Term
motor neurons
Definition
Nerves that carry activity instruction from the CNS to muscles or glands out in the body; also called efferent neurons.
Term
muscle biopsy
Definition
Removal of muscle tissue for pathological examination.
Term
muscle tissue fibers
Definition
The bundles of muscle tissue that form a muscle.
Term
muscles
Definition
Muscles are bundles of parallel muscle tissue fibers. As there fibers contract (shorten in length) they pull whatever they are attached to closer together. This may move two bones closer together or make an opening more narrow. A muscle contraction occurs when a message is transmitted from the brain through the nervous system to the muscles.
Term
muscular
Definition
Pertaining to muscles.
Term
muscular dystrophy
Definition
Inherited disease causing a progressive muscle weakness and atrophy.
Term
myalgia
Definition
Muscle pain.
Term
myasthenia
Definition
Lack of muscle strength.
Term
myelogram
Definition
X-ray record of the spinal cord following injection of meninges with radiopaque dye.
Term
myelography
Definition
Injection of a radiopaque dye into the spinal canal. An X-ray is then taken to examine the normal and abnormal outlines made by the dye.
Term
myeloma
Definition
Malignant neoplasm originating in plasma cells in the bone.
Term
myocardial
Definition
Pertaining to heart muscle.
Term
myocardium
Definition
The middle layer of the muscle. It is thick and composed of cardiac muscle. This layer produces the heart contraction.
Term
myoneural junction
Definition
The point at which a nerve contacts a muscle fiber.
Term
myopathy
Definition
Any disease of muscles.
Term
myoplasty
Definition
Surgical repair of muscle.
Term
myorrhaphy
Definition
Suture a muscle.
Term
myorrhexis
Definition
Muscle ruptured.
Term
myotonia
Definition
Muscle tone.
Term
nasal bone
Definition
A facial bone.
Term
neck
Definition
A narrow length of bone that connects the ball of a ball-and-socket joint to the diaphysis of a long bone.
Term
nonsteroidal anti-inflammatory drugs (NSAIDs)
Definition
A large group of drugs including aspirin and ibuprofen that provide mild pain relief and anti-inflammatory benefits for conditions such as arthritis.
Term
oblique fracture
Definition
Fracture at an angle to the bone.
Term
occipital bone
Definition
A cranial bone.
Term
opposition
Definition
Moves thumb away from palm; the ability to move the thumb into contact with the other fingers.
Term
origin
Definition
The attachment of a skeletal muscle to the less movable bone in the joint.
Term
orthopedics
Definition
Branch of medicine specializing in the diagnosis and treatment of conditions of the musculoskeletal system.
Term
orthotics
Definition
The use of equipment, such as splints and braces, to support a paralyzed muscle, promote a specific motion, or correct musculoskeletal deformities.
Term
os coxae
Definition
Also called the innominate bone or hip bone. It is the pelvis portion of the lower extremity. It consists of the ilium, ischium, and pubis and unites with the sacrum and coccyx to form the pelvis.
Term
osseous tissue
Definition
Bony tissue. One of the hardest tissues in the body.
Term
ossification
Definition
The process of bone formation.
Term
ostealgia
Definition
Bone pain.
Term
osteoarthritis
Definition
Noninflammatory type of arthritis resulting in degeneration of the bones and joints, especially those bearing weight.
Term
osteoblasts
Definition
Embryonic bone cells.
Term
osteochondroma
Definition
Tumor composed of both cartilage and bony substance.
Term
osteoclasia
Definition
Intentional breaking of a bone in order to correct a deformity.
Term
osteocytes
Definition
Mature bone cells.
Term
osteogenic sarcoma
Definition
The most common type of bone cancer; usually begins in osteocytes found at the ends of long bones.
Term
osteomalacia
Definition
Softening of the bones caused by a deficiency of phosphorus or calcium. It is thought that in children the cause is insufficient sunlight and vitamin D.
Term
osteomyelitis
Definition
Inflammation of the bone and bone marrow due to infection; can be difficult to treat.
Term
osteopathy
Definition
Form of medicine that places great emphasis on the musculoskeletal system and the body system as a whole. Manipulation is also used as part of the treatment.
Term
osteoporosis
Definition
Decrease in bone mass that results in a thinning and weakening of the bone with resulting fractures. The bone becomes more porous, especially in the spine and pelvis.
Term
osteotome
Definition
An instrument to cut bone.
Term
osteotomy
Definition
Incision into a bone.
Term
Paget's disease
Definition
A fairly common metabolic disease of the bone from unknown causes. It usually attacks middle-aged and elderly people and is characterized by bone destruction and deformity.
Term
palatine bone
Definition
A facial bone.
Term
parietal bone
Definition
A cranial bone.
Term
patella
Definition
Also called the kneecap. It is a lower extremity bone.
Term
patellar
Definition
Pertaining to the patella or kneecap.
Term
pathologic fracture
Definition
Fracture caused by diseased or weakened bone.
Term
pectoral girdle
Definition
Consists of the clavicle and scapula; functions to attach the upper extremity to the axial skeleton.
Term
pelvic
Definition
Pertaining to the pelvis.
Term
pelvic girdle
Definition
Consists of the ilium, ischium, and pubis; functions to attach the lower extremity to the axial skeleton.
Term
percutaneous diskectomy
Definition
A thin catheter tube is inserted into the intervertebral disk through the skin and the herniated or ruptured disk material is sucked out or a laser is used to vaporize it.
Term
periosteum
Definition
The membrane that covers most bones. It contains numerous nerves and lymphatic vessels.
Term
phalangeal
Definition
Pertaining to the phalanges or finger and toe bones.
Term
phalanges
Definition
The finger bones in the upper extremities and the toe bones in the lower extremities.
Term
plantar flexion
Definition
Bend sole of foot; point toes downward.
Term
podiatry
Definition
Health care profession specializing in diagnosis and treatment of disorders of the feet and lower legs. Heath professional is a podiatrist.
Term
polymyositis
Definition
Disease involving muscle inflammation and weakness from an unknown cause.
Term
process
Definition
A projection from the surface of a bone.
Term
pronation
Definition
To turn downward or backward, as with the hand or foot.
Term
prosthesis
Definition
Artificial device used as a substitute for a body part that is either congenitally missing or absent as a result of accident or disease; for instance, an artificial leg or hip prosthesis.
Term
prosthetics
Definition
Artificial devices, such as limbs and joints, that replace a missing body part.
Term
pseudohypertrophic muscular dystrophy
Definition
One type of inherited muscular dystrophy in which the muscle tissue is gradually replaced by fatty tissue, making the muscle look strong.
Term
pubic
Definition
Pertaining to the pubis; one of the pelvic bones.
Term
pubis
Definition
One of the three bones that form the os coxae or innominate bone.
Term
radial
Definition
Pertaining to the radius; a lower arm bone.
Term
radiography
Definition
Making of X-ray pictures.
Term
radius
Definition
One of the forearm bones in the upper extremity.
Term
rectus abdominis
Definition
A muscle named for its location and the direction of its fibers: rectus means straight and abdominis means abdominal.
Term
red bone marrow
Definition
Tissue that manufactures most of the blood cells. It is found in cancellous bone cavities.
Term
reduction
Definition
Correcting a fracture by realigning the bone fragments. Closed reduction is doing this without entering the body. Open reduction is making a surgical incision at the site of the fracture to do the reduction, often necessary where there are bony fragments to be removed.
Term
repetitive motion disorder
Definition
Group of chronic disorders involving the tendon, muscle, joint, and nerve damage, resulting from the tissue being subjected to pressure, vibration, or repetitive movements for prolonged periods.
Term
rheumatoid arthritis (RA)
Definition
Chronic form of arthritis with inflammation of the joints, swelling, stiffness, pain, and changes in the cartilage that can result in crippling deformities.
Term
rib cage
Definition
Also called the chest cavity. It is the cavity formed by the curved ribs extending from the vertebral column around the sides and attaching to the sternum. The ribs are part of the axial skeleton.
Term
rickets
Definition
Deficiency in calcium and vitamin D found in early childhood that results in bone deformities, especially bowed legs.
Term
rotation
Definition
Moving around a central axis.
Term
rotator cuff injury
Definition
The rotator cuff consists of the joint capsule of the shoulder joint that is reinforced by the tendons from several shoulder muscles; at high risk for strain or tearing injuries.
Term
sacral
Definition
Pertaining to the sacrum.
Term
sacrum
Definition
The five fused vertebrae that form a large flat bone in the upper buttock region.
Term
scapula
Definition
Also called the shoulder blade. An upper extremity bone.
Term
scapular
Definition
Pertaining to the scapula or shoulder blade.
Term
scoliosis
Definition
Abnormal lateral curvature of the spine.
Term
short bone
Definition
A type of bone that is roughly cube shaped. The carpals are short bones.
Term
sinus
Definition
A hollow cavity within a bone.
Term
skeletal muscle
Definition
A voluntary muscle that is attached to bones by a tendon.
Term
skeletal muscle relaxants
Definition
Produces the relaxation of skeletal muscle.
Term
smooth muscle
Definition
An involuntary muscle found in internal organs such as the digestive organs or blood vessels.
Term
spasm
Definition
A sudden, involuntary, strong muscle contraction.
Term
sphenoid bone
Definition
A cranial bone.
Term
spina bifida
Definition
Congenital defect in the walls of the spinal canal in which the laminae of the vertebra do not meet or close. Results in membranes of the spinal cord being pushed through the opening. Can also result in other defects, such as hydrocephalus.
Term
spinal fusion
Definition
Surgical immobilization of adjacent vertebrae. This may be done for several reasons, including correction for a herniated disk.
Term
spinal stenosis
Definition
Narrowing of the spinal canal causing pressure on the cord and nerves.
Term
spiral fracture
Definition
Fracture in an S-shaped spiral. It can be caused by a twisting injury.
Term
spondylolisthesis
Definition
The forward sliding of a lumbar vertebra over the vertebra below it.
Term
spondylosis
Definition
A degenerative condition of the vertebral column.
Term
spongy bone
Definition
The bony tissue found inside a bone. It contains cavities that hold red bone marrow. Also called cancellous bone.
Term
sprain
Definition
Pain and disability caused by trauma to a joint. A ligament may be torn in severe sprains.
Term
sternal
Definition
Pertaining to the sternum or breast bone.
Term
sternocleidomastoid
Definition
Muscle named for its attachments, the sternum, clavicle, and mastoid process.
Term
sternum
Definition
Also called the breast bone. It is part of the axial skeleton and the anterior attachment for ribs.
Term
strain
Definition
Trauma to muscle from excessive stretching or pulling.
Term
stress fracture
Definition
A slight fracture caused by repetitive low-impact forces, like running, rather than a single forceful impact.
Term
striated muscle
Definition
Another name for skeletal muscle referring to its striped appearance under the microscope.
Term
subluxation
Definition
An incomplete dislocation, the joint alignment is disrupted, but the ends of the bones remain in contact.
Term
supination
Definition
Turn the palm or foot upward.
Term
synovectomy
Definition
Excision of the synovial membrane.
Term
synovial fluid
Definition
The fluid secreted by a synovial membrane in synovial joint. It lubricates the joint and reduces friction.
Term
synovial joint
Definition
A freely moving joint that is lubricated by synovial fluid.
Term
synovial membrane
Definition
The membrane that lines a synovial joint. It secretes a lubricating fluid called synovial fluid.
Term
synovitis
Definition
Inflammation of the synovial membrane.
Term
systemic lupus erythematosus (SLE)
Definition
Chronic disease of the connective tissue that injures the skin, joints, kidneys, nervous system, and mucous membranes. May produce a characteristic butterfly rash across the cheeks and nose.
Term
talipes
Definition
Congenital deformity of the foot. Also referred to as a clubfoot.
Term
tarsals
Definition
The ankle bones in the lower extremity.
Term
temporal bone
Definition
A cranial bone.
Term
tendinitis
Definition
Inflammation of tendon.
Term
tendinous
Definition
Pertaining to a tendon.
Term
tendon
Definition
The strong connective tissue cords that attach skeletal muscles to bones.
Term
tendoplasty
Definition
Surgical repair of a tendon.
Term
tendotomy
Definition
Incision into a tendon.
Term
tenodesis
Definition
Surgical procedure to stabilize a joint by anchoring down the tendons of the muscles that move the joint.
Term
tenodynia
Definition
Pain in a tendon.
Term
tenoplasty
Definition
Surgical repair of a tendon.
Term
tenorrhaphy
Definition
Suture a tendon.
Term
thoracic
Definition
Pertaining to the chest.
Term
thoracic vertebrae
Definition
The 12 vertebrae in the chest region.
Term
tibia
Definition
Also called the shine bone. It is a lower extremity bone.
Term
tibial
Definition
Pertaining to the tibia or shin bone.
Term
torticollis
Definition
Severe neck spasms pulling the head to one side; commonly called wryneck or a crick in the neck.
Term
total hip arthroplasty (THA)
Definition
Surgical reconstruction of a hip by implanting a prosthetic or artificial hip joint.
Term
total knee arthroplasty (TKA)
Definition
Surgical reconstruction of a knee joint by implanting a prosthetic knee joint; also called total knee arthroplasty.
Term
traction
Definition
Process of pulling or drawing, usually with a mechanical device. Used in treating orthopedic (bone and joint) problems and injuries.
Term
transverse fracture
Definition
Complete fracture that is straight across the bone at right angles to the long axis of the bone.
Term
trochanter
Definition
The large blunt process that provides the attachment for tendons and muscles.
Term
tubercles
Definition
Small, rounded processes that provide the attachment for tendons and muscles.
Term
tuberosity
Definition
A large, rounded process that provides the attachment to tendons and muscles.
Term
ulna
Definition
One of the forearm bones in the upper extremity.
Term
ulnar
Definition
Pertaining to the ulna, one of the lower arm bones.
Term
upper extremity (UE)
Definition
The arm.
Term
vertebral column
Definition
The vertebral column is part of the axial skeleton. It is a column of 26 vertebra that forms the backbone and protects the spinal cord. It is divided into five sections: cervical vertebrae, thoracic vertebrae, lumbar vertebrae, sacrum, and coccyx. Also called spinal column.
Term
visceral muscle
Definition
The muscle found in the walls of internal organs such as the stomach.
Term
vitamin D therapy
Definition
Maintaining high blood levels of calcium in association with vitamin D helps maintain bone density and treats osteomalacia, osteoporosis, and rickets.
Term
voluntary muscles
Definition
Muscles that a person can consciously choose to contract. The skeletal muscles of the arm and leg are examples of this type of muscle.
Term
vomer bone
Definition
A facial bone.
Term
whiplash
Definition
Injury to the bones in the cervical spine as a result of a sudden movement forward and backward of the head and neck. Can occur as result of a rear-end auto collision.
Term
yellow bone marrow
Definition
Yellow bone marrow is located mainly in the center of the diaphysis of long bones. It contains mainly fat cells.
Term
zygomatic bone
Definition
A facial bone.
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