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Question

Which of the following statements are true about fascicles?
I. They are held together by fascia
II. It contains a number of muscle fibres
III. Sarcolemma is the store house of calcium ions
IV. Sarcoplasm contains myofibrils

A
II, IV
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B
I, III, IV
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C
I, II, IV
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D
I, IV
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Solution

The correct option is C I, II, IV
Each skeletal muscle is made of muscle bundles or fascicles. Each fascicle contains many muscle fibres. Each muscle fibre has a plasma membrane called sarcolemma. The plasma membrane in muscle fibres i.e sarcolemma, has parallelly arranged filaments called myofibrils. Myofibrils are a characteristic feature of muscle fibres. The endoplasmic reticulum in muscle fibres is called sarcoplasmic reticulum is the store house of calcium ions.

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