Peristalsis
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Peristalsis is a radially symmetrical contraction and relaxation of muscles which propagates in a wave down the muscular tube, in an anterograde fashion. In humans, peristalsis is found in the contraction of smooth muscles to propel contents through the digestive tract. It is wave contraction of longitudinal and circular muscles preceded by wave relaxation of these muscles. Earthworms use a similar mechanism to drive their locomotion.
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See also
- Peristaltic pump - Mechanical device that uses peristaltic action to drive fluids
- Catastalsis - Downward wave of contraction occurring in the gastrointestinal tract during digestion
- Basal electrical rhythm - Slow wave of electrical activity that can initiate contraction
- Aboral
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