rectal vein

noun

Medical Definition of rectal vein 

: any of three veins that receive blood from the rectal venous plexus:

a : one draining the lower part of the rectal venous plexus and emptying into the internal pudendal vein

called also inferior hemorrhoidal vein, inferior rectal vein

b : one draining the bladder, prostate, and seminal vesicle by way of the middle part of the rectal venous plexus and emptying into the internal iliac vein

called also middle hemorrhoidal vein, middle rectal vein

c : one draining the upper part of the rectal venous plexus and forming the first part of the inferior mesenteric vein

called also superior hemorrhoidal vein, superior rectal vein

Learn More about rectal vein

Share rectal vein

Comments on rectal vein

What made you want to look up rectal vein? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

exaggeratedly or childishly emotional

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!