The posterior labial veins are veins which drain to the

vesical venous plexus The vesical venous plexus is a venous plexus situated at the fundus of the urinary bladder. It collects venous blood from the urinary bladder in both sexes, from the accessory sex glands in males, and from the corpora cavernosa of clitoris in fem ...

External links

* https://web.archive.org/web/20071024000415/http://anatomy.med.umich.edu/anatomytables/veins_pelvis_perineum.html Veins of the torso {{circulatory-stub