The lower part of the external hemorrhoidal plexus is drained by the inferior rectal veins (or inferior hemorrhoidal veins) into the internal pudendal vein.

Pathologies involving the Inferior rectal veins may cause lower GI bleeding. Depending on the degree of inflammation, they are given a grade level ranging from 1 through 4.

Additional images

  • The perineum. The integument and superficial layer of superficial fascia reflected.

    The perineum. The integument and superficial layer of superficial fascia reflected.

References

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