Question

Loops of Henle occurs in

• A. Cortex
• B. Medulla
• C. Pelvis
• D. Ureter

Answer 1

The correct option is B Medulla

The renal tubule begins with a double walled cup-like structure, called as Bowman's capsule, which encloses the glomerulus. Glomerulus along with Bowman's capsule, is called as the Malpighian body or renal corpuscle. The tubule continues further to form a highly coiled network of proximal convoluted tubule (PCT).

A hairpin shaped Henle's loop is the next part of the tubule, which has a descending and an ascending limb. The ascending limb continues as another highly coiled tubular region is called as distal convoluted tubule (DCT). The DCTs of many nephrons open into a straight tube, called as collecting duct, many of which converge and open into the renal pelvis through medullary pyramids in the calyces.

The Malpighian corpuscle, PCT and DCT of the nephron are situated in the cortical region of the kidney, whereas the loop of Henle dips into the medulla.