The osmotic gradient between the cortex and medulla is created by

Question

The osmotic gradient between the cortex and medulla is created by (A) Urea (B) NH3 (C) Sodium chloride (D) Both A and C

Tardigrade Admin · Accepted Answer

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 mOsmolL-1 in the cortex to about 1200 mOsmolL-1 in the inner medulla. This gradient is mainly caused by NaCl and urea

Q. The osmotic gradient between the cortex and medulla is created by

Urea

$N H_{3}$

Sodium chloride

Both $A$ and $C$

Q. The osmotic gradient between the cortex and medulla is created by

Urea

NH3​

Sodium chloride

Both A and C

$N H_{3}$

Both $A$ and $C$