Question

The vessel leading blood (containing nitrogenous waste) into the Bowman's capsule is known as

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

Answer 1

The correct option is A Afferent arteriole

Blood enters the kidney via the renal artery, which forms many afferent arterioles, each of which delivers blood to an individual kidney nephron. The diameter of the afferent arteriole is greater than the diameter of the efferent arteriole. The pressure of the blood inside the glomerulus is increased due to the difference in diameter of the arterioles. This increased blood pressure helps to force the components of the blood out of the glomerular capillaries.

So, the correct answer is option A.