PHYSIOLOGY
SYNAPTIC PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The contractile unit of a muscle is called the ____
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Sarcolemma
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Sarcoplasmic reticulum
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Sarcoplasm
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Sarcomere
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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: –The structural and functional unit of muscle fiber is the sarcomere.
Detailed explanation-3: -Answer and Explanation: The smallest contractile unit of a skeletal muscle is called a sarcomere.
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