Which of the following statements is correct?
The ascending limb of loop of Henle is impermeable to water
The descending limb of loop of Henle is impermeable to water
The ascending limb of loop of Henle is permeable to water
The descending limb of loop of Henle is permeable to electrolytes
MECHANISM OF CONCENTRATION OF THE FILTRATE -
The flow of blood through the two limbs of vasa recta is also in a counter current pattern. The proximity between the Henle’s loop and vasa recta, as well as the counter current in them help in maintaining an increasing osmolarity towards the inner medullary interstitium, i.e., from 300 mOsmol L–1 in the cortex to about 1200 mOsmol L–1 in the inner medulla.
- wherein
Only salt goes outside in ascending loop, not water.
Option 1)
The ascending limb of loop of Henle is impermeable to water
This solution is correct
Option 2)
The descending limb of loop of Henle is impermeable to water
This solution is incorrect
Option 3)
The ascending limb of loop of Henle is permeable to water
This solution is incorrect
Option 4)
The descending limb of loop of Henle is permeable to electrolytes
This solution is incorrect