Superior mesenteric vein

veinmesenteric veinsuperiorsuperior mesenteric
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum).wikipedia
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Pancreas

pancreaticexocrine pancreaspancreatic development
At its termination behind the neck of the pancreas, the superior mesenteric vein combines with the splenic vein to form the hepatic portal vein.
The pancreas stretches from the inner curvature of the duodenum, where the head surrounds two blood vessels, the superior mesenteric artery, and vein.

Ileum

terminal ileumilealsmall bowel
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum).
The ileum, along with the jejunum, is suspended inside the mesentery, a peritoneal formation that carries the blood vessels supplying them (the superior mesenteric artery and vein), lymphatic vessels and nerve fibers.

Superior mesenteric artery

superiorSuperior mesentericcranial mesenteric artery
The superior mesenteric vein lies to the right of the similarly named artery, the superior mesenteric artery, which originates from the abdominal aorta.
The SMA typically runs to the left of the similarly named vein, the superior mesenteric vein.

Portal vein

hepatic portal veinportalhepatic portal
At its termination behind the neck of the pancreas, the superior mesenteric vein combines with the splenic vein to form the hepatic portal vein.
The portal vein is usually formed by the confluence of the superior mesenteric and splenic veins and also receives blood from the inferior mesenteric, left and right gastric veins, and cystic veins.

Splenic vein

lienal veinveinsplenic
At its termination behind the neck of the pancreas, the superior mesenteric vein combines with the splenic vein to form the hepatic portal vein.
It collects branches from the stomach and pancreas, and most notably from the large intestine (also drained by the superior mesenteric vein) via the inferior mesenteric vein, which drains in the splenic vein shortly before the origin of the hepatic portal vein.

Large intestine

coloncolorectallarge bowel
Venous drainage usually mirrors colonic arterial supply, with the inferior mesenteric vein draining into the splenic vein, and the superior mesenteric vein joining the splenic vein to form the hepatic portal vein that then enters the liver.

Small intestine

small bowelsmall intestinessmall
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum).

Ileal veins

veins from ileum
The ileal veins are tributaries of the superior mesenteric vein.

Right gastroepiploic vein

Right gastro-omental vein
The right gastroepiploic vein (right gastroomental vein) is a blood vessel that drains blood from the greater curvature and left part of the body of the stomach into the superior mesenteric vein.

Jejunal veins

veins from jejunum
The jejunal veins drains the jejunum and are tributaries of the superior mesenteric vein.

Mesenteric ischemia

intestinal ischemiaischemic bowelMesenteric ischaemia
Thrombosis of the superior mesenteric vein is quite rare, but a significant cause of mesenteric ischemia and can be fatal.
There are four mechanisms by which poor blood flow occurs: a blood clot from elsewhere getting lodged in an artery, a new blood clot forming in an artery, a blood clot forming in the superior mesenteric vein, and insufficient blood flow due to low blood pressure or spasms of arteries.

Right colic vein

The right colic vein drains the ascending colon, and is a tributary of the superior mesenteric vein.

Middle colic vein

It is a tributary of the superior mesenteric vein, and follows the path of its corresponding artery, the middle colic artery.

Hepatic portal system

hepatic portal circulationportal systemportal sclerosis
The superior mesenteric vein and the splenic vein come together to form the actual hepatic portal vein.

Blood vessel

vascularblood vesselsintravascular
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum).

Blood

human bloodhematologicaloxygen consumption
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum).

Jejunum

jejunaljejunal diseasesJejunal feedings
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum).

Abdominal aorta

abdominalabdominal aorticaorta, abdominal
The superior mesenteric vein lies to the right of the similarly named artery, the superior mesenteric artery, which originates from the abdominal aorta.

Transverse colon

transversecolon, transverseParts of transverse

Ascending colon

ascendingascending portion of the coloncolon, ascending

Thrombosis

blood clotsthromboticblood clot
Thrombosis of the superior mesenteric vein is quite rare, but a significant cause of mesenteric ischemia and can be fatal.