The type of muscles responsible for the movement of food through lumen of intestine are:
Correct answer: A. Smooth muscles
- A. Smooth muscles
- B. Cardiac muscles
- C. Skeletal muscles
- D. Skeletal & cardiac muscles
Explanation
Smooth muscle in the wall of the intestine contracts in waves of peristalsis that push food along the lumen without conscious control. Cardiac muscle is found only in the heart and skeletal muscle is attached to bones, so neither lines the gut beyond the upper oesophagus.
This question appeared on the UHS MDCAT 2026 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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