MUSCLE
SKELETAL MUSCLE
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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 unit in a muscle cell?
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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: -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 smallest contractile unit in striated muscles is the sarcomere.
Detailed explanation-3: -Skeletal muscle is the muscle type that initiates all of our voluntary movement. Herein lies the sarcomere’s main purpose. Sarcomeres are able to initiate large, sweeping movement by contracting in unison. Their unique structure allows these tiny units to coordinate our muscles’ contractions.
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