Middle rectal veins
From Wikipedia, the free encyclopedia
The middle rectal veins (or middle hemorrhoidal vein) take origin in the hemorrhoidal plexus and receive tributaries from the bladder, prostate, and seminal vesicle.
Quick Facts Details, Drains from ...
Middle rectal veins | |
---|---|
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 |
Close
They run lateralward on the pelvic surface of the levator ani to end in the internal iliac vein. Veins superior to the middle rectal vein in the colon and rectum drain via 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]