Superior mesenteric vein 2345151 192668596 2008-02-19T22:51:27Z DerHexer 2092344 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]]