Superior mesenteric vein
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2008-02-19T22:51:27Z
DerHexer
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Reverted edits by [[Special:Contributions/128.122.42.199|128.122.42.199]] ([[User talk:128.122.42.199|talk]]) to last version by DerHexer
{{Infobox Vein |
Name = {{PAGENAME}} |
Latin = vena mesenterica superior |
GraySubject = 174 |
GrayPage = 682 |
Image = Gray591.png |
Caption = The [[portal vein]] and its tributaries. The superior mesenteric vein and [[splenic vein]]. ''Leinal vein'' is an old term for ''splenic vein''. [[Anatomical position]]. |
Image2 = Gray1099.png |
Caption2 = The pancreas and duodenum from behind. |
DrainsFrom = |
DrainsTo = [[hepatic portal vein]] |
Artery = [[superior mesenteric artery]] |
MeshName = |
MeshNumber = |
DorlandsPre = v_05 |
DorlandsSuf = 12851033 |
}}
In [[anatomy]], the '''superior mesenteric vein''' (SMV) is a [[blood vessel]] that drains [[blood]] from the [[small intestine]] ([[jejunum]] and [[ileum]]). At its termination behind the neck of the [[pancreas]], the SMV combines with the [[splenic vein]] to form the [[hepatic portal vein]]. The SMV lies to the right of the similarly named artery, the [[superior mesenteric artery]], which originates from the [[abdominal aorta]].
==Branches==
Tributaries of the superior mesenteric vein drain the [[large intestine]], [[stomach]], [[pancreas]] and [[vermiform appendix|appendix]] and include:
* [[Right gastro-omental vein]] (also known as the right gastro-epiploic vein)
* [[inferior pancreaticoduodenal veins]]
* [[veins from jejunum]]
* [[veins from ileum]]
* [[middle colic vein]] - drains the [[transverse colon]]
* [[right colic vein]] - drains the [[ascending colon]]
* [[ileocolic vein]]
==Disorders==
Thrombosis of the superior mesenteric vein is quite rare, but a significant cause of [[mesenteric ischemia]] and can be fatal. It is estimated that 10-15% of mesenteric [[ischemia]] is due to mesenteric [[thrombosis]].{{ref|Tessier}}
==References==
#{{note|Tessier}}Tessier DJ, Williams RA, Mesenteric ischemic thrombosis, eMedicine, URL: http://www.emedicine.com/med/topic2753.htm, Accessed July 30, 2005.
==External links==
* {{Medcyclopaedia|ii/m/MESENTERIC_VEIN_SUPERIOR}}
* {{SUNYAnatomyLabs|39|02|01|02}} - "Intestines and Pancreas: The Superior Mesenteric Vessels"
* {{SUNYAnatomyImage|8|6|96}}
{{Veins}}
[[Category:Veins]]
[[Category:Abdomen]]
[[fr:Veine mésentérique supérieure]]
[[la:Vena mesenterica superior]]