pyloric sphincter

pyloric sphincter
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. 2011.

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  • 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 sphincter muscle — musculus sphincter pyloricus …   Medical 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 sphincter — noun Muscular valve connecting the stomach to the duodenum and regulating flow of materials out of the stomach …   Wiktionary

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

  • sphincter — A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. SYN: musculus s. [TA], s. muscle [TA]. [G. sphinkter, a band or lace] s. of ampulla s. of hepatopancreatic ampulla. anatomic s.… …   Medical dictionary

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

  • Pyloric antrum — Infobox Anatomy Name = PAGENAME Latin = antrum pyloricum GraySubject = 247 GrayPage = 1162 Caption = Outline of stomach, showing its anatomical landmarks. (Pyloric antrum visible at left.) Caption2 = Interior of the stomach. (Pyloric antrum… …   Wikipedia

  • sphincter muscle — noun a ring of muscle that contracts to close an opening • Syn: ↑sphincter, ↑anatomical sphincter • Hypernyms: ↑muscle, ↑musculus • Hyponyms: ↑physiological sphincter, ↑ …   Useful english dictionary

  • Sphincter — A sphincter is an anatomical structure, or a circular muscle, that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals; there …   Wikipedia

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