Question

Which blood vessel carries blood from the kidneys back to the heart?

Answer 1

Blood vessels:

1. Blood vessels include arteries and veins which carry oxygenated blood and deoxygenated blood to and from the body.
2. Arteries carry oxygenated blood to the organs from the heart, whereas, veins carry deoxygenated blood from the organs to the heart.

Renal vein:

1. Kidney is one such organ from which blood vessels enter and leave.
2. Renal arteries enter the kidney for filtration of blood as it has various nitrogenous waste.
3. Deoxygenated blood is expelled from the kidneys through the right and left renal veins, which connect to the inferior vena cava to the heart.
4. The deoxygenated blood that flows through renal vein will have least nitrogenous metabolic waste.