Question

Which of the following is/are not correct with respect to nephron and its parts?

• A. It is the functional unit of the nervous system
• B. Proximal convoluted tubule lies away from the malpighian corpuscles
• C. A ‘U’ shaped peritubular capillary is formed from afferent arterioles
• D. All the above

Answer 1

The correct option is D All the above

The nephron is the functional unit of the excretory system. It is made up of 2 parts - renal or malpighian corpuscle and renal tubules. Proximal convoluted tubule (PCT) is called proximal because it lies near to the malpighian corpuscle.

Efferent arteriole is a branch of the renal artery that drains blood away from the glomerulus. It is the connecting vessel between the glomerulus, peritubular capillaries and vasa recta. Vasa recta are the blood capillaries that surround the loop of Henle and are 'U' shaped. Peritubular capillaries are the blood capillaries that surround the PCT and DCT.