ORIGIN: Anterior division of internal iliac artery.


COURSE/DISTRIBUTION: Springs from the anterior division of the internal iliac artery when present. It may arise from the uterine artery or directly from the anterior division. It descends into the vagina and provides the vessels that form the azygos artery of the vagina. Together with the vaginal branch of the uterine artery, this artery (azygos) provides the lower part of continuous anastomoses in the whole of the female reproductive system, running from the vagina inferiorly and passing through cervix, to uterus and ovary (the most superior). With these longitudinal anastomoses, it is possible to see that hormonal release from the ovary would influence everything along the path of the anastomoses. Equally true would be that blockage of this anastomoses would disrupt reproductive cyclicity in those organs distal to the blockage and this may be responsible for such phenomena as irregular menstrual bleeding, or paradoxical midcycle bleeding which coincides with the highest level of circulating sex steroids.



  • Azygos artery of vagina.
  • Rectal branches to rectum
  • Bulbar branches to bulb of vestibule
  • Cystic branches to fundus of bladder.


Pelvis female video          Layers of pelvis links       Electronic dissector    Structure locator


DIGITAL LOCATOR OF MALE PELVIS: Layer 1 Skin of pelvis- anterior abdominal wall and perineum). Layer 2- Superficial aspect of pelvis.  Layer 3 - intermediate dissection of male pelvis. Layer  4 - deep dissection of male pelvisCommon iliac vessel is located at layer 4 of pelvis. Rollover mouse to label; click to display age. Click blinking end page to display common iliac artery page Roll over mouse to unlabel. Layer  4 of male pelvis




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Electronic School of Medicine
Creator: Oluwole Ogunranti