Pyloric antrum 1654289 159730301 2007-09-23T03:30:44Z Ri2e above 5394447 /* External links */ {{Mergeto|Pylorus|date=June 2007}} {{Infobox Anatomy | Name = {{PAGENAME}} | Latin = antrum pyloricum | GraySubject = 247 | GrayPage = 1162 | Image = Gray1046.svg | Caption = Outline of [[stomach]], showing its anatomical landmarks. (Pyloric antrum visible at left.) | Image2 = Gray1050.png | Caption2 = Interior of the stomach. (Pyloric antrum visible at left.) | System = | MeshName = Pyloric+Antrum | MeshNumber = A03.556.875.875.716 | DorlandsPre = a_50 | DorlandsSuf = 14179413 | }} '''Pyloric antrum''' ('''antrum''', '''lesser cul-de-sac''') is the initial portion of the pyloric part of the [[stomach]]. It is near the bottom of the stomach on the left side of the [[pyloric sphincter]], which separates the stomach and the [[duodenum]]. It may temporarily become partially or completely shut off from the remainder of the stomach during [[digestion]] by [[peristaltic]] contraction of the [[prepyloric sphincter]]; it is demarcated, sometimes, from the second part of the [[pyloric part of the stomach]] ([[pyloric canal]]) by a slight groove. ==Function== The pyloric antrum is the location of several important [[endocrine]] cells including [[Gastrin]]-producing [[G cell|G Cells]] (stimulate acid production) and the luminal-pH-sensitive population of [[somatostatin]] producing of [[D cell (biology)|D cells]] (responsible for shutting off acid secretion. There is a second hormone-sensitive population near the [[fundus]].) == Etymology == Pylorus - lesser, <br> atrum - cave; cavern; hollow place with overarching foliage; cavity, hollow; tomb ==Additional images== <gallery> Image:Stomach2.gif|Stomach Image:illu_stomach.jpg|Stomach </gallery> ==Sources== *William F Ganong. "Review of Medical Physiology, 22nd Edition." *Physiology Lecture Notes. ==External links== * [http://med.plig.org/2/ Controversy over definition at plig.org] * {{SUNYAnatomyLabs|37|06|01|04}} - "Abdominal Cavity: The stomach" * {{SUNYAnatomyImage|7|7|65}} * {{eMedicineDictionary|Pyloric+antrum}} {{digestive-stub}} {{Digestive tract}}