Which of the following statements are correct regarding skeletal muscle?
A) Muscle bundles are held together by collagenous connective tissue layer called fascicle.
B) Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions.
C) Striated appearance of skeletal muscle fibres is due to distribution pattern of actin and myosin proteins.
D) M line is considered as a functional unit of contraction called sarcomere.
Choose the most appropriate answer from the options given below.

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B and C only

A,C and D only

C and D only

A, B and C only

answer is A.

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Detailed Solution

A) Muscle bundles are held together by collagenous connective tissue layer called fascia.
B) Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions.
C) Striated appearance of skeletal muscle fibres is due to distribution pattern of actin and myosin proteins.
D) Sarcomere is the functional unit of muscle contraction. M-line holds the thick filaments.

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