A | B |
aerobic | with oxygen |
anaerobic | without oxygen |
agonist | primary mover |
antagonist | cause movement in the opposite direction |
point of insertion | end of skeletal muscle attached to a moveable part |
point of origin | end of skeletal muscle attached to a fixed structure |
prime mover | moves muscle in one direction |
synergists | assist with movement |
acetylcholine (ACh) | neurotransmitter between neuron and voluntary muscle |
sarcolemma | muscle cell membrane |
adenosine triphosphate (ATP) | energy molecule needed for muscle contraction and relaxation |
isometric contraction | muscle tenses but does not shorten |
isotonic contraction | muscles contract and shorten |
sarcomere | functional unit of muscle contraction |
sarcoplasm | muscle cell cytoplasm |
sphincter | rings in muscles that control opening and closing |
contraction | shortening of a muscle |
cardiac | involuntary muscle |
acetylcholine | chemical neurotransmitter |
extensibility | ability of a muscle to be stretched |
muscle fatigue | caused by accumulation of lactic acid |
excitability | muscle response to certain stimuli |
hypertrophy | caused by over-exercising |
isometric | contraction and shortening of muscles |
skeletal | muscle attached to bone |
muscular dystrophy | group of diseases of muscles causing cell deterioration |
hernia | protrusion of an organ through a weak muscle |
tetanus | lockjaw |
myasthenia gravis | progressive muscular weakness and paralysis |
origin | where muscle attached to bone |
antagonist | opposing the action of another muscle |
autonomic nervous system | control involuntary muscles |
action potentials | electrical signals the produce excitability |
elasticity | ability of a muscle to return to original length |
smooth muscle | provide movement/storeage in the internal organs |
smooth muscle | provide movement/storeage in the internal organs |
sphincter | rings in muscles that control opening and closing |
contraction | shortening of a muscle |
cardiac | involuntary muscle |
acetylcholine | chemical neurotransmitter |
extensibility | ability of a muscle to be stretched |
muscle fatigue | caused by accumulation of lactic acid |
excitability | muscle response to certain stimuli |
hypertrophy | caused by over-exercising |
isometric | contraction and shortening of muscles |
skeletal | muscle attached to bone |
muscular dystrophy | group of diseases of muscles causing cell deterioration |
hernia | protrusion of an organ through a weak muscle |
tetanus | lockjaw |
myasthenia gravis | progressive muscular weakness and paralysis |
origin | where muscle attached to bone |
antagonist | opposing the action of another muscle |
autonomic nervous system | control involuntary muscles |
action potentials | electrical signals the produce excitability |
elasticity | ability of a muscle to return to original length |