Question

In man, which blood vessel takes away blood from the kidneys?

• A. Afferent arteriole
• B. Renal vein
• C. Efferent arteriole
• D. Renal portal vein

Answer 1

The correct option is B

Renal vein

The correct option is (B):

Explanation of the correct option:

1. Kidney is a reddish-brown bean-shaped vital organ that helps in the purification of blood and removes nitrogenous wastes.
2. The renal vein takes purified blood away from the kidney to reach the inferior vena cava.
3. There are two renal veins in the human body.
4. The inferior vena cava is the largest vein that pours deoxygenated blood into the heart.

Explanation of the incorrect options:

Option (A):

1. Afferent arteriole is a group of blood vessels that supplies blood to the tuft of capillaries called the glomerulus.
2. The glomerulus is the main site for filtration

Option (B):

1. Efferent arteriole is a group of arteries that carry blood away from the glomerulus.

Option (C):

1. Renal portal vein help in providing blood to the renal tubules of the nephron when filtration does not take place in the glomerulus.

Final answer:

The renal veins take away blood from the kidneys.