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The food moves from the esophagus to the stomach by muscular contractions and relaxations. What do we call these contractions and relaxations?
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The food moves from the esophagus to the stomach by muscular contractions and relaxations. What do we call these contractions and relaxations?

User Tzachi
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It is peristalsis. In the Greek it meant 'to wrap around,' so I am not sure why we use that term. Yet, we do.
User MicSokoli
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