Question

Part of a nephron mostly in the renal medulla, consisting of a descending limb and ascending limb, involved in secretion and reabsorption of filtrate and water permeability?

a) Proximal convoluted tubule
b) Distal convoluted tubule
c) Loop of Henle
d) Collecting duct

Answer 1

The Loop of Henle, located in the renal medulla, consists of a descending limb and an ascending limb. It is involved in the secretion and reabsorption of filtrate and plays a critical role in establishing an osmotic gradient for urine concentration.

Step-by-step explanation:

The correct answer is c) Loop of Henle. The Loop of Henle is a part of the nephron that is mostly located in the renal medulla. It consists of a descending limb and an ascending limb. The loop of Henle plays a critical role in the secretion and reabsorption of filtrate, as well as the regulation of water permeability. Its structure and function create a countercurrent multiplier system, establishing an osmotic gradient in the renal medulla that enables the concentration of urine.