PHYSIOLOGY
SLIDING FILAMENT MODEL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The plasma membrane of a skeletal muscle fiber is called the
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myolemma
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sarcolemma
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sarcoplasm
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sarcoplasmic reticulum
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Explanation:
Detailed explanation-1: -Each muscle fibre is lined by the plasma membrane called sarcolemma enclosing the sarcoplasm . Muscle fibre is a syncitium as the sarcoplasm contains many nuclei. The endoplasmic reticulum, i.e., sarcoplasmic reticulum of the muscle fibres is the store house of calcium ions.
Detailed explanation-2: -The plasma membrane of muscle fibers is called the sarcolemma (from the Greek sarco, which means “flesh”) and the cytoplasm is referred to as sarcoplasm (Figure 10.2.
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