Peristalsis: This is the rhythmic muscle contractions that propel food through the digestive tract.
Peristalsis: Waves of muscle contractions that move food through the digestive tract.
| Front | peristalsis |
|---|---|
| Back | (1) Alternating waves of contraction and relaxation in the smooth muscles lining the alimentary canal that push food along the canal. (2) A type of movement on land produced by rhythmic waves of muscle contractions passing from front to back, as in many annelids. |
Tags: ch.41
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