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Hardneet pyq 2026
+4 / -1
QUESTION: 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 Ca++ into sarcoplasm. C. Increase in 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:
A
A and B only
B
C and E only
C
C and D only
D
A, B, D and E only
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