What is peristalsis ?
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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. ... The motion mixes and shifts the chyme back and forth.
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Peristalsis is the movements that the large tubes inside the body make automatically to push something out or along.
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