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Muscular System Concentration

HS1

AB
aerobicwith oxygen
anaerobicwithout oxygen
agonistprimary mover
antagonistcause movement in the opposite direction
point of insertionend of skeletal muscle attached to a moveable part
point of originend of skeletal muscle attached to a fixed structure
prime movermoves muscle in one direction
synergistsassist with movement
acetylcholine (ACh)neurotransmitter between neuron and voluntary muscle
sarcolemmamuscle cell membrane
adenosine triphosphate (ATP)energy molecule needed for muscle contraction and relaxation
isometric contractionmuscle tenses but does not shorten
isotonic contractionmuscles contract and shorten
sarcomerefunctional unit of muscle contraction
sarcoplasmmuscle cell cytoplasm
sphincterrings in muscles that control opening and closing
contractionshortening of a muscle
cardiacinvoluntary muscle
acetylcholinechemical neurotransmitter
extensibilityability of a muscle to be stretched
muscle fatiguecaused by accumulation of lactic acid
excitabilitymuscle response to certain stimuli
hypertrophycaused by over-exercising
isometriccontraction and shortening of muscles
skeletalmuscle attached to bone
muscular dystrophygroup of diseases of muscles causing cell deterioration
herniaprotrusion of an organ through a weak muscle
tetanuslockjaw
myasthenia gravisprogressive muscular weakness and paralysis
originwhere muscle attached to bone
antagonistopposing the action of another muscle
autonomic nervous systemcontrol involuntary muscles
action potentialselectrical signals the produce excitability
elasticityability of a muscle to return to original length
smooth muscleprovide movement/storeage in the internal organs
smooth muscleprovide movement/storeage in the internal organs
sphincterrings in muscles that control opening and closing
contractionshortening of a muscle
cardiacinvoluntary muscle
acetylcholinechemical neurotransmitter
extensibilityability of a muscle to be stretched
muscle fatiguecaused by accumulation of lactic acid
excitabilitymuscle response to certain stimuli
hypertrophycaused by over-exercising
isometriccontraction and shortening of muscles
skeletalmuscle attached to bone
muscular dystrophygroup of diseases of muscles causing cell deterioration
herniaprotrusion of an organ through a weak muscle
tetanuslockjaw
myasthenia gravisprogressive muscular weakness and paralysis
originwhere muscle attached to bone
antagonistopposing the action of another muscle
autonomic nervous systemcontrol involuntary muscles
action potentialselectrical signals the produce excitability
elasticityability of a muscle to return to original length


NC

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