PHYSIOLOGY
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A muscle fiber shortens
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contraction
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relaxation
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The molecular events of muscle fiber shortening occur within the fiber’s sarcomeres (see [link]). The contraction of a striated muscle fiber occurs as the sarcomeres, linearly arranged within myofibrils, shorten as myosin heads pull on the actin filaments.
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