"Diluting segment" of a nephron is:
Descending limb of loop of Henle
Thick ascending limb of loop of Henle
DCT
Collecting duct
Thick ascending LOH is k/a the diluting segments of the nephron. It is impermeable to water. It has NKCC cotranspoer proteins that reabsorb Na+, K+, 2Cl- ions. Thus,There is a net reabsorption of solutes with no movement of water, making the tubular fluid that reaches the DCT hypotonic.
Excretory System (Kidney, Bladder) Acid-Base Balance