click below
click below
Normal Size Small Size show me how
7 & 8 VOCAB
Musculoskeletal
sutures | synthroses, flat bones of skull |
articular cartilage | covers ends of long bones so bones don't rub together |
aponeurosis | broad, flat tendon |
syngerist | assists prime mover |
neurotransmitter | chemical substance, stimulates muscle contraction |
motor unit | motor neuron and muscle fibers it stimulates |
origin | attached to immovable bone |
insertion | attached to movable bone |
articulation | contacts between bones |
epimysium | surrounds muscle |
hematopoiesis | erythrocyes formation |
prime mover | responsible for body movement |
synarthroses | immovable joints |
amphiarthroses | slightly movable joints |
epiphysis | end of long bone |
osteogenesis | bone formation |
sarcoplasm | cytoplasm muscle cell |
acetylcholine | neurotransmitter |
appendicular skeleton | upper and lower extremities (arms and legs) |
diaphysis | shaft of a long bone |
excitability | responds to stimulus |
acetylcholinesterase | enzymes inactivates acetylcholine |
axial skeleton | bones of head, neck and trunk |
diarthroses | freely movable joints |
periosteum | membrane covers bone |
neuromuscular junction | axon and terminal communication |
osteocyes | mature bone cells |
sarcolemma | muscle cell membrane |
extensibility | stretch |
osteon | functional unit of bone |
contractility | ability to shorten |
epiphyseal line | remnants of epiphyseal plate |
endosteum | membrane that lines bones |
epiphyseal plate | growth plate |
elasticity | returns to normal shape when released |
appositional growth | diameter growth of long bone |
pelvic girdle | hip bones |
antagonists | muscle action |
pectoral girdle | pectoralis major, upper region, chest |
osteoblasts | immature bone cells |
osteoclasts | cells that break down bone |