mesenteric vein

noun

Medical Definition of mesenteric vein

: either of two veins draining the intestine, passing between the two layers of the mesentery, and associated with the corresponding mesenteric arteries:
a : one that is a continuation of the superior rectal vein, that returns blood from the rectum, the sigmoid colon, and the descending colon, that accompanies the inferior mesenteric artery, and that usually empties into the splenic vein

called also inferior mesenteric vein

b : one that drains blood from the small intestine, the cecum, the ascending colon, and the transverse colon, that accompanies the superior mesenteric artery, and that joins with the splenic vein to form the portal vein

called also superior mesenteric vein

Learn More About mesenteric vein

Dictionary Entries Near mesenteric vein

mesenteric plexus

mesenteric vein

mesenteriolum

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Cite this Entry

“Mesenteric vein.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/mesenteric%20vein. Accessed 27 Nov. 2021.

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