Locomotion and Movement: NEET 2026

Medium· Mechanism of Muscle Contraction (Sliding Filament Theory of Muscle Contraction)· +4 / −1

Choose the correct statements regarding muscle contraction. A. A motor neuron carries a signal sent by the Central Nervous System (CNS) to the sarcolemma of the muscle fibre. B. The neural signal generates an action potential which causes the release of

\mathrm{Ca^{++}}

into sarcoplasm. C. Increase in

\mathrm{Ca^{++}}

inactivates the actin for breaking cross bridges. D. Actin binds to the myosin head to form a cross bridge. E. Shortening of sarcomere takes place, by pulling actin filaments towards the centre of 'A' band. Choose the correct answer from the options given below:

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Locomotion and Movement: NEET 2026

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