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SCCCAP-Test 2-Vocabulary
Vocabulary, lecture chapters 5, 6, 8
72
Anatomy
Undergraduate 2
10/06/2012

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Cards

Term
Keratinocytes
Definition
produce fibrous protein keratin (protects and waterproofs skin) in epidermis
Term
Melanocytes
Definition
produce pigment melanin in epidermis
Term
Epidermal dendritic (Langerhans) cells
Definition
macrophages that help activate immune system
Term
Tactile (Merkel) cells
Definition
touch receptors in epidermis
Term
Meissner's corpuscles
Definition
touch receptors in papillary layer of dermis
Term
Hirsutism
Definition
excessive hairiness
Term
Alopecia
Definition
hair thinning
Term
Diploƫ
Definition
spongy bone in flat bones
Term
Diaphysis
Definition
shaft of long bones
Term
Epiphyses
Definition
ends of long bones
Term
Periosteum
Definition
outer membrane fibrous layer of bone
Term
Endosteum
Definition
delicate membrane on internal surfaces of bone
Term
Osteoblasts
Definition
bone-forming cells
Term
Osteoclasts
Definition
bone-destroying cells
Term
Osteogenic cells
Definition
bone stem cells
Term
Osteocytes
Definition
mature bone cells, maintain the matrix
Term
Osteon
Definition
the structural unit of compact bone
Term
Lamella
Definition
each column-like matrix tube in an osteon
Term
Central (Haversian) canal
Definition
canal in the center of each osteon that contains blood vessels and nerves
Term
Osteoid
Definition
organic bone matrix secreted by osteoblasts
Term
Hydroxyapatites
Definition
mineral salt, inorganic component of bone
Term
Osteogenesis (ossification)
Definition
bone tissue formation
Term
Epiphyseal plates
Definition
growth plates, located between the diaphysis and epiphysis
Term
Wolff's law
Definition
a bone grows or remodels in response to forces or demands placed upon it
Term
Osteomalacia
Definition
disease where bones are not properly mineralized
Term
Osteoporosis
Definition
disease where bone resorption outpaces bone deposit
Term
Paget's Disease
Definition
excessive and haphazard bone formation and breakdown, usually in spine, pelvis, femur, or skull
Term
Joint
Definition
site where two or more bones meet
Term
Joints: Sutures
Definition
joint held together with very short, interconnecting fibers, and bone edges interlock
Term
Joints: Syndesmosis
Definition
joint held together by a ligament
Term
Joints: Gomphosis
Definition
"peg in socket" joint
Term
Joints: Synchondroses
Definition
bones united by hyaline cartilage
Term
Joints: Symphyses
Definition
bones united by fibrocartilage
Term
achondroplasia
Definition
a congenital condition involving defective cartilage and bone growth so the limbs are too short but the membrane bones are of normal size; a type of dwarfism
Term
bony spur
Definition
abnormal projection from a bone due to bony overgrowth; common in aging bones
Term
ostealgia
Definition
pain in a bone
Term
osteogenesis imperfecta
Definition
brittle bone disease; a disorder in which the bone matrix has inadequate amounts of collagen, putting it at risk for shattering
Term
osteomyelitis
Definition
inflammation of bone and bone marrow caused by pus-forming bacteria
Term
osteosarcoma
Definition
a form of bone cancer typically arising in a long bone of the limb
Term
pathologic fracture
Definition
fracture in a diseased bone involving slight or no physical trauma (eg. hip bone weakened by osteoporosis breaks and causes a person to fall, rather than breaking because of the fall)
Term
traction
Definition
"pulling"; placing sustained tension on a body region to keep the parts of a fractured bone in proper alignment
Term
trabeculae
Definition
spongy bone - a honeycomb of small needle-like or flat pieces
Term
tuberosity
Definition
long, rounded projection (projections that are sites of muscle or ligament attachment)
Term
crest
Definition
narrow ridge of bone; usually prominent (projections that are sites of muscle or ligament attachment)
Term
trochanter
Definition
very large, blunt, irregularly shaped process (projections that are sites of muscle or ligament attachment)
Term
line (bone marking)
Definition
narrow ridge of bone, less prominent than a crest (projections that are sites of muscle or ligament attachment)
Term
tubercle
Definition
small rounded projection or process (projections that are sites of muscle or ligament attachment)
Term
epicondoyle
Definition
raised area on or above a condoyle (projections that are sites of muscle or ligament attachment)
Term
spine (bone marking)
Definition
sharp, slender, often pointed projection (projections that are sites of muscle or ligament attachment)
Term
process (bone markings)
Definition
any bony prominence (projections that are sites of muscle or ligament attachment)
Term
head (bone marking)
Definition
bony expansion carried on a narrow neck (projections that help to form joints)
Term
facet (bone marking)
Definition
smooth, nearly flat articular surface (projections that help to form joints)
Term
condyle
Definition
rounded articular projection (projections that help to form joints)
Term
ramus (bone marking)
Definition
armlike bar of bone (projections that help to form joints)
Term
groove (bone marking)
Definition
furrow (depressions and openings for passage of blood vesels or nerves)
Term
fissure (bone marking)
Definition
narrow, slit-like opening (depressions and openings for passage of blood vesels or nerves)
Term
foramen (bone marking)
Definition
round or oval opening through a bone (depressions and openings for passage of blood vesels or nerves)
Term
notch (bone marking)
Definition
indentation at the end of a structure (depressions and openings for passage of blood vesels or nerves)
Term
meatus (bone marking)
Definition
canal-like passageway
Term
sinus (bone markings)
Definition
cavity within a bone, filled with air and lined with a mucous membrane
Term
fossa (bone marking)
Definition
shallow, basin-like depression in a bone, often serving as an articular surface
Term
Perforating (Sharpey's) Fibers
Definition
collagen fibers that secure the periosteum to the bone
Term
Perforating (Volkmann's) canals
Definition
at right angles to the central canal, connects blood vessels and nerves of the periosteum and central canal
Term
Lacunae
Definition
small cavities that contain osteocytes
Term
Canaliculi
Definition
hairlike canals that connect lacunae to each other and the central canal
Term
Bursae
Definition
flattened fibrous sacs lined with synovial membrane containing synovial fluid
Term
tendon sheath
Definition
an elongated bursa that wraps completely around a tendon
Term
cyanosis
Definition
skin appears blue or purple due to poor oxygenation
Term
erythema
Definition
redness of skin
Term
pallor
Definition
paleness of skin
Term
jaundice
Definition
skin appears yellow due to liver dysfunction; yellow bile pigment accumulates in blood and is deposited in tissue
Term
Addison's Disease
Definition
disorder of adrenal gland, causes bronzing of the skin
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