PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A sarcomere is
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A protein filament or fiber
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The basic contractile unit of muscle contraction
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An organelle
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An organ
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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.
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