External iliac artery

The external iliac arteries are two major arteries which bifurcate off the common iliac arteries anterior to the sacroiliac joint of the pelvis.

Structure

The external iliac artery arises from the bifurcation of the common iliac artery. They proceed anterior and inferior along the medial border of the psoas major muscles. They exit the pelvic girdle posterior and inferior to the inguinal ligament. This occurs about one third laterally from the insertion point of the inguinal ligament on the pubic tubercle. At this point they are referred to as the femoral arteries.

Branches

Function

The external iliac artery provides the main blood supply to the legs. It passes down along the brim of the pelvis and gives off two large branches - the "inferior epigastric artery" and a "deep circumflex artery." These vessels supply blood to the muscles and skin in the lower abdominal wall. The external iliac artery passes beneath the inguinal ligament in the lower part of the abdomen and becomes the femoral artery.

Clinical significance

The external iliac artery is usually the artery used to attach the renal artery to the recipient of a kidney transplant.

Additional images

See also

• Internal iliac artery
• Common iliac artery

References

External links

• Anatomy photo:43:12-0104 at the SUNY Downstate Medical Center - "The Female Pelvis: The External and Internal Iliac Vessels"
• Anatomy figure: 43:07-05 at Human Anatomy Online, SUNY Downstate Medical Center - "Sagittal view of the internal iliac artery and its branches in the female pelvis. "
• Anatomy image:8970 at the SUNY Downstate Medical Center
• pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (pelvicarteries)
• Hypogastric artery - thefreedictionary.com