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4. Skeletal System
Unit E Skeletal System
66
Medical
10th Grade
05/20/2013

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Term
Abduction
Definition
Moving a body part away from the mid-line of the body.
Term
Adduction
Definition
Moving a body part toward the mid-line of the body.
Term
Appendicular Skeleton
Definition
The bones of the shoulders, arms, hips, and legs.
Term
Axial Skeleton
Definition
The bones of the head, chest, and back.
Term
Ball and Socket Joint
Definition
These joints allow for forward motion, backward motion and circular rotation. Ex. Shoulder
Term
Bursa
Definition
Fluid filled sac that decreases friction where a tendon rubs against a bone near the synovial joint.
Term
Circumduction
Definition
To move a limb in a circular manner.
Term
Compact Bone
Definition
Hard or dense bone forming the superficial layer of all bones.
Term
Diaphysis
Definition
The straight shaft of a long bone.
Term
Endosteum
Definition
A thin layer of connective tissue that lines the surface of the bony tissue that forms the medullary cavity of long bones.
Term
Epiphysis
Definition
The widened ends of the long bone.
Term
Extension
Definition
Straightening a joint to increase the angle between two bones or body parts.
Term
Flexion
Definition
Bending of a joint to decrease the angle between two bones or body parts. Opposite of extension.
Term
Fontanel
Definition
An anatomical feature on an infant's skull comprised by any of the soft membranous gaps between the incompletely formed cranial bones of a foetus or an infant.
Term
Gliding Joint
Definition
This type of joint features two bone plates that glide against one another. Ex. Wrist
Term
Hemopoiesis
Definition
Formation of blood cells.
Term
Hinge Joint
Definition
This type of joint can open and close like a door. Move in up and down motions. Ex. Elbow
Term
Joint
Definition
An area where 2 bones come together.
Term
Medullary Canal
Definition
The marrow cavity of a bone.
Term
Ossifcation
Definition
Process by which cartilaginous tissue is changed into bone from infancy through puberty.
Term
Osteocyte
Definition
Bone cells. There are two types, osteoclasts and osteoblasts.
Term
Periosteum
Definition
Thick, fibrous membrane that goes around and covers the outside of the bone.
Term
Pivot Joint
Definition
These joints allow for rotation around an axis. Ex. Neck
Term
Pronation
Definition
Moving the palm to the downward position, foot or hand.
Term
Rotation
Definition
When a bone "spins" on its axis.
Term
Spongy Bone
Definition
Bone in which the spicules form a latticework, with interstices filled with embryonic connective tissue or bone marrow.
Term
Supination
Definition
Moving the palm to the upward position, foot or hand.
Term
Suture
Definition
Immovable joints. Ex. Bones in the Skull
Term
Synovial Fluid
Definition
Clear lubricating fluid that is secreted by the synovial membrane.
Term
Rheumatoid Arthritis
Definition
A chronic inflammatory disorder that typically affects the small joints in your hands and feet. Causes- when your immune system attacks the synovium — the lining of the membranes that surround your joints. Symptoms- Tender, warm, swollen joints, morning stiffness that may last for hours, Firm bumps of tissue under the skin on your arms (rheumatoid nodules,fatigue, fever and weight loss. Treatment- NSAIDS, steroids, DMARDs, Immunosuppressents, TNF-alpha inhibitors, therapy, total joint replacement, tendon repair, and joint fusion.
Term
Osteoarthritis
Definition
Occurs when the protective cartilage on the ends of your bones wears down over time. Causes- Cartilage wears down completely, you may be left with bone rubbing on bone. Symptoms- Pain, tenderness, stiffness, loss of flexibility, grating sensation, and bone spurs. Treatment- No cure, acetaminophen, NSAIDS, Narcotics, physical therapy, occupational therapy, braces, shoe inserts, cortisone shots, lubrication injections, realigning bones, and joint replacement.
Term
Arthroscophy
Definition
A minimumly invasive surgerical procedure in which an examination and sometimes treatment of damage of the interior of a joint is performed using a arthroscope, a type of endoscope that is inserted into the joint through a small incision.
Term
Bone Marrow Aspiration
Definition
Bone marrow aspiration removes a small amount of bone marrow fluid and cells through a needle put into a bone. The bone marrow fluid and cells are checked for problems with any of the blood cells made in the bone marrow.
Term
Birsitis
Definition
a painful condition that affects the small fluid-filled pads hat act as cushions among your bones and the tendons and muscles near your joints. Causes- Throwing a baseball or lifting something over your head repeatedly, leaning on your elbows for long periods of time, extensive kneeling, for tasks such as laying carpet or scrubbing floors, and prolonged sitting, particularly on hard surfaces. Symptoms- Joint may feel feel achy or stiff, hurts more when you move it or press on it, look swollen and red. See a doctor if disabling joint pain, pain for more than one to two weeks, excessive swelling, redness, bruising or a rash in the affected area, Sharp or shooting pain, especially when you exercise or exert yourself, or a fever. Treatment- medication, therapy, injections, and surgery.
Term
Closed Reduction
Definition
A medical procedure to restore a fracture or dislocation to the correct alignment.
Term
Comminuted Fracture
Definition
A fracture in which the bone involved in the fracture is broken into several pieces. At least three separate pieces of bone must be present for a fracture to be classified as comminuted.
Term
Compound Fracture
Definition
Is an injury that occurs when there is a break in the skin around a broken bone. In order for an injury to be classified as a compound fracture, the outside air (and dirt and bacteria) must be able to get to the fracture site without a barrier of skin or soft-tissue.
Term
Dislocation
Definition
Occurs when there is an abnormal separation in the joint, where two or more bones meet.
Term
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Definition
Skull
Term
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Definition
Cervical Vertebrae
Term
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Definition
Clavicle
Term
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Definition
Scapula
Term
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Definition
Sternum
Term
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Definition
Xiphoid Process
Term
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Definition
Humerus
Term
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Definition
Ribs
Term
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Definition
Radius
Term
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Definition
Ulna
Term
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Definition
Thoracic Vertebrae
Term
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Definition
Lumbar Vertebrae
Term
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Definition
Sacrum
Term
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Definition
Coccyx
Term
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Definition
Ilium
Term
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Definition
Ischium
Term
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Definition
Carpals
Term
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Definition
Metacarpals
Term
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Definition
Thumb
Term
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Definition
Femur
Term
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Definition
Patella
Term
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Definition
Tibia
Term
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Definition
Fibula
Term
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Definition
Tarsals
Term
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Definition
Metatarsals
Term
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Definition
Phalanges
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