rectal vein meaning in Hindi

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.
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.

noun.