PATHOLOGY

Detailed explanation-1: -Renal arteries enter the kidney for filtration of blood as it has various nitrogenous waste. Deoxygenated blood is expelled from the kidneys through the right and left renal veins, which connect to the inferior vena cava to the heart.

Detailed explanation-2: -The renal vein takes purified blood away from the kidney to reach the inferior vena cava. There are two renal veins in the human body.

Detailed explanation-3: -The vena cavae are the terminal parts of the extensive venous networks throughout the periphery returning deoxygenated blood to the heart. The inferior vena cava carries deoxygenated blood from the tissues below the diaphragm.