The muscle contraction depends on:
Correct answer: D. All of these
- A. Nerve impulse
- B. Energy
- C. Calcium
- D. All of these
Explanation
Nerve impulse reaches the neuro-muscular junction and calcium is released in the muscle cell, and when contraction occurs and ATP is used to hydrolyse the cross-links formed between myosin heads and actin filaments.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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