Superior rectal vein

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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
/ Elsevier

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.