In the kidney, the<unk>  is the portion of the nephron that leads from the proximal convoluted tubule to the distal convoluted tubule. The loop has a hairpin bend in the renal medulla. The main function of this structure is to reabsorb water and ions from the urine. To do this, it uses a countercurrent multiplier mechanism in the medulla. It is named after its discoverer, F. G. J. Henle.
Loop of Henle
Thick ascending limb of loop of Henle
Thin ascending limb of loop of Henle
Renal tubule
Distal convoluted tubule
Renal corpuscle
Peritubular capillaries
Renal medulla