What is the main role of the Henle's loop in producing a concentrated urine in mammals?

What is the main role of the Henle's loop in producing a concentrated urine in mammals?
  1. Reabsorption of essential nutrients
  2. Reabsorption of water
  3. Maintenance of osmolarity gradient
  4. Secretion of hydrogen ions

Solution

The Henle’s loop plays a significant role in the maintenance of high osmolarity of medullary interstitial fluid by the flow of filtrate in opposite directions, which forms a counter current, helping in maintaining an increasing osmolarity towards the inner medullary interstitium.

Asked in: NCERT

Practice more Excretory Products and their Elimination questions on Aicharya