Superior rectal 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.
Details
Drains from	rectum
Source	hemorrhoidal plexus
Drains to	inferior mesenteric vein
Artery	superior rectal artery
Identifiers
Latin	vena rectalis superior
TA	A12.3.12.035
FMA	15393
*Anatomical terminology* [edit on Wikidata]

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.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

To azygos system

To IVC or left renal vein

Unpaired

posterior:	iliolumbar superior gluteal lateral sacral

anterior:	inferior gluteal obturator uterine ♀ uterine plexus ♀ vesical vesical plexus prostatic plexus ♂ deep of penis ♂/clitoris ♀ posterior scrotal ♂/labial ♀ vaginal plexus/vein ♀ middle rectal internal pudendal inferior rectal bulb of penis ♂/vestibule ♀ rectal plexus

Splenic	short gastric left gastroepiploic pancreatic inferior mesenteric superior rectal left colic

Superior mesenteric	right gastroepiploic pancreaticoduodenal jejunal ileal middle colic right colic ileocolic appendicular

Direct	cystic left gastric/esophageal right gastric paraumbilical

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