Explain a muscle contraction.
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when a muscle contracts is called muscle contraction if you can be explained as when we curve power hand then our muscle becomes like a ball
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Muscle contraction is the activation of tension-generating sites within muscle fibers. ... The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state. Muscle contractions can be described based on two variables: length and tension.
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