PATHOLOGY

Detailed explanation-1: -The inferior vena cava (IVC) is a large retroperitoneal vessel formed by the confluence of the right and left common iliac veins. Anatomically this usually occurs at the L5 vertebral level.

Detailed explanation-2: -The external and internal iliac veins combine to form common iliac veins. These veins join to become the inferior vena cava, your largest vein.

Detailed explanation-3: -The inferior vena cava is the lower ("inferior") of the two venae cavae, the two large veins that carry deoxygenated blood from the body to the right atrium of the heart: the inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body.

Detailed explanation-4: -The common iliac artery bifurcates to give rise to the internal and external iliac arteries. The internal iliac artery supplies the pelvis, pelvic organs, reproductive organs, and the medial part of the thigh.