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Superior rectal vein

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Title: Superior rectal vein  
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Subject: Sigmoid mesocolon, Rectal venous plexus, Superior rectal artery, Portacaval anastomosis
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Superior rectal vein

Vein: Superior rectal vein
The bloodvessels of the rectum and anus, showing the distribution and anastomosis on the posterior surface near the termination of the gut. (Labeled at top as superior hemorrhoidal vein.)
The veins of the right half of the male pelvis.
Latin vena rectalis superior
Gray's subject #174 681
Drains from    rectum
Source hemorrhoidal plexus
Drains to inferior mesenteric vein
Artery superior rectal artery

The inferior mesenteric vein begins in the rectum as the superior rectal vein (superior hemorrhoidal vein), which has its origin in the hemorrhoidal plexus, and through this plexus communicates with the middle and inferior hemorrhoidal veins.

The superior rectal vein leaves the lesser pelvis and crosses the left common iliac vessels with the superior rectal artery, and is continued upward as the inferior mesenteric vein.

This article incorporates text from a public domain edition of Gray's Anatomy.


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