Branching out from the common iliac artery, external iliac arteries supply the pelvic organs and the gluteal region. After traveling along the psoas major, a long muscle connected to the lumbar spine that skirts the pelvic edge, this artery becomes the inferior epigastric artery and the deep circumflex artery, both of which provide blood to the lower abdomen. One external iliac passes underneath the inguinal ligament on each side, becoming the femoral artery.

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