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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
Created by: kayxoxolee