Internal Iliac Vein

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** A blood vessel running parallel to the internal iliac artery that joins with the external iliac vein to drain blood into the common iliac vein from the pelvic organs as well as the inner thigh.

**Synonyms:** - Hypogastric Vein - Structure of internal iliac vein (body structure)