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17-12-2020
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What is peristalsis and where does it occur? write to 3 to 8.

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adyanf882 adyanf882

17-12-2020

Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

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