The vagina is supplied blood from the vaginal artery. This artery is found only in females.
The vaginal artery is said to come from either the uterine artery or the internal iliac artery. In males, the inferior vesical artery may be assumed to be the same as the vaginal artery in females.
There are frequently two to three branches of the vaginal artery that are present in women. This varies per individual.
The vaginal artery supplies blood to the mucous membrane of the vagina. It can also branch into the fundus (upper part of the vagina), vestibule (which houses the vaginal opening), and parts of the rectum.