PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the name of the contractile units making up a myofibril?
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fascicle
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sarcomere
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tendon
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endomysium
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Explanation:
Detailed explanation-1: -The contractile functional unit of the myofibril is called the sarcomere, which is approximately 1.6–2.0 m in length. The different regions of the sarcomere are classified according to their ability to polarize light.
Detailed explanation-2: -Sarcomere. Sarcomere, repeating unit form myofibril. Myofibrils are essentially polymers, or repeating units, of sarcomeres. The shortening of the individual sarcomeres leads to the contraction of the individual muscle fibres, leading to muscle contractions..
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