Question

Loop of Henle occurs in

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

Answer 1

Answer: (B)

Medulla

In the kidney, the loop of Henle forms a hairpin structure that dips down into the medulla. It is a part of renal tubule, comes after proximal convoluted tubule. It contains four segments: the pars recta (the straight descending limb of proximal tubule), the thin descending limb, the thin ascending limb, and the thick ascending limb. The turn of the loop of Henle usually occurs in the thin segment within the medulla, and the tubule then ascends toward the cortex parallel to the descending limb. The end of the loop of Henle becomes the distal convoluted tubule.

So, the correct answer is option B.