prepyloric sphincter

a band of muscle fibers in the wall of the stomach proximal to the pyloric sphincter.

Medical dictionary. 2011.

Look at other dictionaries:

  • 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 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

  • Antrum — A general term for cavity or chamber which may have specific meaning in reference certain organs or sites in the body. The antrum of the stomach (gastric antrum) is a portion before the outlet which is lined by mucosa which does not produce acid …   Medical dictionary

  • digestive system disease — Introduction       any of the diseases that affect the human digestive tract. Such disorders may affect the esophagus, stomach, small intestine, large intestine (colon), pancreas, liver, or biliary tract. A prevalent disorder of the digestive… …   Universalium

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