The percentage of ________ muscle fibers changes with physical conditioning.
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Q91: When acetylcholine binds to receptors on the
Q92: Relaxation of muscle is a(n)_ process.
Q93: The _ of a muscle cell stores
Q94: Within a myofibril each myosin filament is
Q95: Between the endomysium and the muscle fibers
Q97: By varying the number of _ activated
Q98: Increased cytosolic _ concentrations are necessary for
Q99: Skeletal muscle fiber contractions are caused by
Q100: The connective tissue that surrounds each skeletal
Q101: Light staining areas of a muscle fiber
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