A muscle with characters like a spontaneous contraction, one nucleus per cell, and no control over contraction is most likely:
Correct answer: A. Smooth muscle
- A. Smooth muscle
- B. Cardiac muscle
- C. Skeletal muscle
- D. Visceral muscle
Explanation
Refer to the following table from Punjab Board Textbook.
This question appeared on the NUMS 2021 paper, which you can sit online with every answer explained.
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About Muscles
Muscles covers skeletal, smooth and cardiac muscle, their microscopic structure and the roles of tendons, myofibrils, actin and myosin. It explains the sliding filament mechanism, sarcomere shortening, neuromuscular transmission and calcium regulation, while distinguishing voluntary skeletal movement from involuntary contraction in smooth and cardiac muscle.
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