pyloric valve

noun
the sphincter muscle of the pylorus that separates the stomach from the duodenum
Part Holonyms: ↑pylorus

* * *

noun or pyloric sphincter
1. : the circular fold of mucous membrane containing a ring of circularly disposed muscle fibers that closes the vertebrate pylorus
2. : the valvular fold of the pylorus of an invertebrate

Useful english dictionary. 2012.

Look at other dictionaries:

  • pyloric valve — n PYLORIC SPHINCTER * * * a prominent circular fold of mucous membrane in the stomach near the pyloric orifice …   Medical dictionary

  • pyloric valve — 1. (ARTHROPODA: Insecta) A regulatory (sphincter) at the entrance to the intestine from the stomach; usually located behind the stomach in the anterior part of the proctodeum. 2. (ARTHROPODA: Crustacea) see cardiac pyloric valve …   Dictionary of invertebrate zoology

  • pyloric valve — noun A valvular fold<!mucous membrane or muscule? at the end of the pyloric canal which lets food pass from the stomach to the duodenum. Syn: pyloric sphincter …   Wiktionary

  • cardiac pyloric valve — (ARTHROPODA: Crustacea) In Decapoda, a calcified triangular plate that may be flat or curved, generally covered with elongate setae pointing backwards, or covered by a thick corrugated layer of pigmented chitin; functioning as a guard to the… …   Dictionary of invertebrate zoology

  • pyloric sphincter — n the circular fold of mucous membrane containing a ring of circularly disposed muscle fibers that closes the vertebrate pylorus called also pyloric valve * * * musculus sphincter pyloricus …   Medical dictionary

  • pyloric sphincter — noun the sphincter muscle of the pylorus that separates the stomach from the duodenum • Syn: ↑pyloric valve, ↑musculus sphincter pylori • Hypernyms: ↑sphincter, ↑anatomical sphincter, ↑sphincter muscle • Part Holonyms: ↑ …   Useful english dictionary

  • pyloric stomach — Posterior region of the decapod foregut [Brusca and Brusca, 2002]. (Order Decapoda): Posterior and smaller division of stomach; separated from large anterior cardiac stomach by cardiopyloric valve. Characterized by highly folded, setose walls… …   Crustacea glossary

  • pyloric stenosis — noun narrowing of the pyloric sphincter that blocks the passage of food from the stomach into the duodenum • Hypernyms: ↑stenosis, ↑stricture * * * noun : narrowing of the pyloric opening (as from congenital malformation or contraction of scar… …   Useful english dictionary

  • pyloric sphincter — the valve like constriction of the intestine immediately behind the stomach, controlling the flow of food from the stomach …   Dictionary of ichthyology

  • pyloric stenosis — Pathol. an abnormal narrowing of the valve at the outlet from the stomach, preventing normal passage of food into the small intestine. [1895 1900] * * * …   Universalium

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