External Iliac Artery

• Continues in the line of the Common iliac artery
• Passes along the Pelvic Brim on Psoas muscle
• Passes beneath the Inguinal Ligament
• Enters the Femoral Sheath as the Femoral Artery
• Two branches given off just above the Inguinal Ligament:
  • Inferior Epigastric Artery: Ascends along the medial margin of the Deep Inguinal Ring
  • Deep Circumflex Iliac Artery: Runs above the Inguinal Ligament

• Surface Marking of the Common Iliac and External Iliac Arteries: Along a line from the Aortic Bifurcation to the midpoint between the ASIS and Pubic Symphysis
• Common Iliac Artery corresponds to the Upper 1/3 and External Iliac Artery to the lower 2/3 of this line
• Bifurcation of the Common into the External and Internal Iliacs is 3cm from the midline, level with the Tubercles of the Iliac Crests (the Intertubercular Plane)