Neha Patil

Middle rectal veins

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Drains from  rectum
Artery  middle rectal artery
Dorlands /Elsevier  v_05/12851614
Drains to  internal iliac vein
Latin  venae rectales mediae
TA  A12.3.10.018
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.

References

Middle rectal veins Wikipedia


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