Internal iliac artery

The common iliac artery divides into the external and internal iliac arteries.

External iliac artery continues below as the femoral artery (after crossing the inguinal ligament) and then becomes the popliteal artery.

Internal iliac artery divides into the anterior division (AD) and the posterior division (PD).

Branche’s from anterior division of internal iliac artery- 

1. ilio lumbar artery
2. Lateral sacral artery
3. Superior gluteal artery (SGA)

Branche’s from posterior division of internal iliac artery- 

1. Obturator artery
2. Internal pudendal artery
3. Middle rectal artery
4. Inferior gluteal artery (IGA)
5. Uterine and vaginal artery (in female)
6. Inferior vesical artery (in the male)

PD - Posterior division

Note: In fetal life umbilical artery carries deoxygenated blood from fetus to placenta.