- Internal Iliac Artery (Hypogastric)
- Supplies: Pelvic organs, Perineum, gluteal muscles, medial thigh.
- Posterior Division: Gluteal region & posterior pelvic wall. (Mnemonic: I Love Sex)
- Iliolumbar
- Lateral sacral
- Superior gluteal
- Anterior Division: Pelvic viscera & perineum.
- Uterine a.: Ureter passes inferior to it (“water under the bridge”).
- Internal Pudendal a.: Main supply to perineum/external genitalia.
- Obturator a.: Medial thigh (adductors).
- External Iliac Artery
- Supplies: Lower limb & anterior abdominal wall.
- Becomes the femoral artery after passing under the inguinal ligament.
- Key Branch: Inferior Epigastric Artery
- Supplies the rectus abdominis.
- Landmark for Inguinal Hernias:
- Indirect hernia: Lateral to inferior epigastric a.
- Direct hernia: Medial to inferior epigastric a.