Middle rectal veins
Middle rectal veins
Main page
1646642

Middle rectal veins

logo
Community Hub0 subscribers
What are your thoughts?
Be the first to start a discussion here.
Be the first to start a discussion here.
Middle rectal veins

The middle rectal veins (or middle hemorrhoidal vein) take origin in the hemorrhoidal plexus and receive tributaries from the bladder, prostate, and seminal vesicle.

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.

Public domain This article incorporates text in the public domain from page 676 of the 20th edition of Gray's Anatomy (1918)

See all
User Avatar
No comments yet.