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…

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 fibre is due to distribution pattern of actin and myosin proteins.

D. M line is considered as functional unit of contraction called sarcomere.

Choose the most appropriate answer from the options given below:

1. C and D only

2. A, B and C only

3. B and C only

4. A, C and D only

Doubtly Asked 30 Oct 2026 NEET UG 2023 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 3. B and C only

Key idea: Check each statement on skeletal muscle.

A is wrong: the layer of collagenous connective tissue around bundles is the fascia. A fascicle is the bundle itself.
B is correct: the sarcoplasmic reticulum stores calcium ions.
C is correct: the striations arise from the arrangement of actin and myosin.
D is wrong: the functional unit of contraction is the sarcomere, and the M line is only the middle line of the A band.

B and C only is option 3.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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