View source for Superior mesenteric vein

{{Infobox Vein |
  Name        = {{PAGENAME}} |
  Latin       = vena mesenterica superior |
  GraySubject = 174 |
  GrayPage    = 682 |
  Image       = Portal_vein_and_tributaries.gif |
  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  |
}}
{{WikiDoc Cardiology Network Infobox}}
{{CMG}}




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 name 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]]
[[Category:Anatomy]]
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[[fr:Veine mésentérique supérieure]]