Iliac vein

Overview

In human anatomy, iliac vein refers to several anatomical structures located in the pelvis:

External iliac vein – terminates at the common iliac vein, drains the femoral vein.
Internal iliac vein – terminates at the common iliac vein, drains pelvic organs and perineum.
Common iliac vein – formed by the external and internal iliac veins, drains into the inferior vena cava.