ANATOMY

Detailed explanation-1: -Your inferior vena cava, your body’s largest vein, carries oxygen-depleted blood back to your heart from the lower part of your body (below your diaphragm). Your superior vena cava, your second biggest vein, brings oxygen-poor blood from your upper body to your heart.

Detailed explanation-2: -Vena cava-One of the two great veins that carries deoxygenated blood from the body to the right atrium of the heart.

Detailed explanation-3: -Deoxygenated blood from the lower half of the body enters the heart from the inferior vena cava while deoxygenated blood from the upper body is delivered to the heart via the superior vena cava.

Detailed explanation-4: -Vena Cavae The inferior vena cava carries deoxygenated blood from the tissues below the diaphragm. It passes through the diaphragm via the caval opening at the level of T11, the most superior of the diaphragmatic openings.

Detailed explanation-5: -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.