- Passes along pelvic side wall below the Obturator Nerve
- Enters Obturator Foramen with the Obturator Nerve and Vein
- Passes into Thigh
- Gives off small branch to the periosteum at the back of Pubis
- Vessel anastomoses with the Pubic branch of the Inferior Epigastric Artery
- In 30% of pts, this connection opens up to become an Accessory or Abnormal Obturator Artery, replacing the normal branch from the Internal Iliac in the latter instance
- Would usually run from Inferior Epigastric Artery to the Obturator Foramen passing on the LATERAL side of the Femoral Ring, i.e. adjacent to the External Iliac Vein
- When it lies on the MEDIAL side (alongside the Lacunar Ligament), it is vulnerable to injury