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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 |