Definitions for peristalsisˌpɛr əˈstɔl sɪs, -ˈstæl-

This page provides all possible meanings and translations of the word peristalsis

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. peristalsis, vermiculation(noun)

    the process of wavelike muscle contractions of the alimentary tract that moves food along

WiktionaryRate this definition:(0.00 / 0 votes)

  1. peristalsis(Noun)

    The rhythmic, wave-like contraction of the digestive tract that forces food through it.

  2. Origin: From περισταλτικός δύναμις, from περιστέλλω, from περί + στέλλω.

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. Peristalsis(noun)

    peristaltic contraction or action

  2. Origin: [NL. See Peristaltic.]

FreebaseRate this definition:(0.00 / 0 votes)

  1. Peristalsis

    Peristalsis is a radially symmetrical contraction and relaxation of muscles which propagates in a wave down a 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. The word is derived from New Latin and comes from the Greek peristallein, "to wrap around," from peri-, "around" + stallein, "to place". In much of the gastrointestinal tract, smooth muscles contract in sequence to produce a peristaltic wave which forces a ball of food along the gastrointestinal tract. Peristaltic movement is initiated by circular smooth muscles contracting behind the chewed material to prevent it from moving back into the mouth, followed by a contraction of longitudinal smooth muscles which pushes the digested food forward. Catastalsis is a related intestinal muscle process.

U.S. National Library of MedicineRate this definition:(0.00 / 0 votes)

  1. Peristalsis

    A movement, caused by sequential muscle contraction, that pushes the contents of the intestines or other tubular organs in one direction.

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