PHYSIOLOGY
GENERAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the contractile unit of the muscle?
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Z disk
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Sarcomere
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Muscle fiber
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Muscle cell
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Explanation:
Detailed explanation-1: -A sarcomere is the basic contractile unit of a myocyte (muscle fibre). A sarcomere is composed of two main protein filaments (thin actin and thick myosin filaments) which are the active structures responsible for muscular contraction.
Detailed explanation-2: -Answer and Explanation: The smallest contractile unit of a skeletal muscle is called a sarcomere.
Detailed explanation-3: -Sarcomerum. Synonyms: Myomere, Myomerum. The sarcomere is the main contractile unit of muscle fiber in the skeletal muscle. Each sarcomere is composed of protein filaments (myofilaments) that include mainly the thick filaments called myosin, and thin filaments called actin.
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