Middle rectal veins
| Middle rectal veins | |
|---|---|
 Scheme of the anastomosis of the veins of the rectum | |
| Details | |
| Drains from | rectum |
| Drains to | internal iliac vein |
| Artery | middle rectal artery |
| Identifiers | |
| Latin | venae rectales mediae |
| TA98 | A12.3.10.018 |
| TA2 | 5030 |
| FMA | 70912 |
| Anatomical terminology | |
The middle rectal veins (or middle hemorrhoidal vein) take origin in the
seminal vesicle
.
They run lateralward on the pelvic surface of the
portal system to the liver. Veins inferior, and including, the middle rectal vein drain into systemic circulation and are returned to the heart, bypassing the liver.[1]
References
This article incorporates text in the public domain from page 676 of the 20th edition of Gray's Anatomy (1918)
- ISSN 0312-5963. Retrieved 18 March 2024.
The superior rectal vein, perfusing the upper part of the rectum, drains into the portal vein and subsequently into the liver On the other hand, the middle and inferior rectal veins drain the lower part of the rectum and venous blood is returned to the inferior vena cava.
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