Muscle Physiology: Question Preview (ID: 11267)

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These connect muscle to bone
a) ligaments b) fascia c) tendons d) z lines
This protein filament is thinner and connects to z lines
a) myosin b) a band c) actin d) sarcomere
Nerves release this neurotransmitter into the neuromuscular junction:
a) acetycholinesterase b) calcium c) acetycholine d) t-tubules
When actin and myosin overlap it produces a dark striation called an:
a) A band b) I band c) Z line d) sarcomere
Fast twitch muscle fibers are used during what type of exercise?
a) anaerobic b) hypertropy c) atrophy d) aerobic
A repeating unit of a muscle fiber from z line to z line is called a:
a) ligament b) I band c) sarcoplasmic reticulum d) sarcomere
This structure releases calcium when stimulated by the t-tubules
a) sarcoplasmic reticulum b) neuromuscular junction c) z line d) nerve
When a muscle does not relax at all between contractions:
a) muscle tone b) tetanus c) atrophy d) hypertrophy
A recording of a muscle twitch is called a:
a) myogram b) slow twitch fiber c) neuromuscular d) atrophy
Acetycholinesterase is a cool word and...
a) it goes into the sarcoplasmic reticulum b) it sends acetylcholine into the neuromuscular junction c) it causes t-tubules to contract d) aids in the relaxation of a muscle fiber
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