Biology · Locomotion and Movement
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:
- 1A, B, D and E only✓
- 2C and D only
- 3C and E only
- 4A and B only
Correct answer
A, B, D and E only
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