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Question

What is peristalsis? Mention its role in digestion?

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Solution

  • Peristalsis is a series of muscle contractions that propagates a wave down a tube in the alimentary canal and allows the movement of food.
  • In the gastrointestinal tract of humans, the smooth muscle contracts to produce a peristaltic wave which propels the bolus (a ball of food) into the oesophagus.

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