Pylorus
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2008-06-06T15:06:07Z
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{{Mergefrom|Pyloric antrum|date=June 2007}}
{{Distinguish|Pillory}}
{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = valvula pylori |
GraySubject = 247 |
GrayPage = 1164 |
Image = Gray1046.svg |
Caption = Outline of stomach, showing its anatomical landmarks. |
Image2 = Gray1050.png |
Caption2 = Interior of the stomach. (Pylorus labeled at center left.) |
System = |
MeshName = |
MeshNumber = |
DorlandsPre = v_02 |
DorlandsSuf = 12844554 |
}}
The '''pylorus''' (from [[Greek language|Greek]] πυλωρος = "gate guard") is the region of the [[stomach]] that connects to the [[duodenum]]. It is divided in two parts:
* the [[pyloric antrum]], which connects to the body of the stomach.
* the [[pyloric canal]], which connects to the duodenum.
The pyloric [[sphincter]], or [[valve]], is a strong ring of smooth muscle at the end of the pyloric canal and lets food pass from the stomach to the duodenum. It receives [[sympathetic]] innervation from [[celiac ganglion]].
==Medical significance==
One medical condition associated with the pylorus is [[pyloric stenosis]].
In such conditions as [[stomach cancer]], when tumours may partly block the pyloric canal, a special tube can be implanted surgically to connect the stomach to the duodenum to assist food to pass from one to the other. This tube is called a '''pyloric stent'''.
==In popular culture==
In [[John Kennedy Toole]]'s [[A Confederacy of Dunces]], the protagonist complains frequently about his "valve", which opens or shuts according to stress levels.
==Additional images==
<gallery>
Image:Gray1051.png|The longitudinal and circular muscular fibers of the stomach, viewed from above and in front.
Image:Gray1052.png|The oblique muscular fibers of the stomach, viewed from above and in front.
</gallery>
==References==
* {{Stedman's|1557908}}
==External links==
* {{SUNYAnatomyLabs|37|06|01|05}} - "Abdominal Cavity: The Stomach"
* {{SUNYAnatomyLabs|38|07|01|02}} - "Stomach, Spleen and Liver: The Pylorus"
* {{SUNYAnatomyImage|8|1|50}}
{{Digestive tract}}
[[Category:Digestive system]]
[[ca:Pílor]]
[[de:Pylorus]]
[[es:Píloro]]
[[fr:Pylore]]
[[it:Piloro]]
[[hu:Gyomorkapu]]
[[la:Pylorus]]
[[nl:Maagportier]]
[[pl:Odźwiernik]]
[[pt:Piloro]]