What is the main function of Henle's loop in urine formation?

What is the main function of Henle's loop in urine formation?
  1. Reabsorption of essential nutrients
  2. Maintenance of osmolarity of medullary interstitial fluid
  3. Reabsorption of water and electrolytes
  4. Maintenance of pH and ionic balance of body fluids

Solution

Henle's loop plays a significant role in the maintenance of high osmolarity of medullary interstitial fluiD) The descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes, which concentrates the filtrate as it moves down, and the ascending limb is impermeable to water but allows transport of electrolytes.

Asked in: NCERT

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