ORIGIN: Posterior division of the internal iliac artery.

COURSE/DISTRIBUTION: Arise from the internal pudendal artery just above the ischial tuberosity. There are two branches of these from the posterior division of the internal iliac artery. They are the superior and inferior branches. The superior passes through the first or 2nd pelvic sacral foramina to reach the back of sacrum through the corresponding dorsal sacral foramen. It supplies the sacral canal and the back of the sacrum, including the skin over the sacrum. It anastomoses with the superior gluteal artery.

The inferior branch passes in front of the piriformis and anastomoses with several arteries around it to reach the coccyx. Some of its branches also enter the pelvic sacral canal like the superior branch. It supplies muscles and sacral canal.


  • Muscular branches
  • Anastomotic branches.


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Creator: Oluwole Ogunranti


Pelvis male video          Layers of pelvis links       Electronic dissector    Structure locator


DIGITAL LOCATOR OF LATERAL SACRAL ARTERIES: 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 pelvisLateral sacral arteries 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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