Question

Urine is concentrated in loop of Henle in

• A. Descending limb
• B. Thick ascending limb
• C. Hairpin bend between descending and ascending limbs
• D. Area between ascending limb and distal convoluted tubule

Answer 1

The correct option is C Hairpin bend between descending and ascending limbs

The flow of filtrate in the two limbs of Henle’s loop is in opposite directions and thus forms a counter current.

The flow of blood through the two limbs of vasa recta is also in a countercurrent pattern.

The proximity between the Hairpin bend between descending and ascending limbs of Henle’s loop and vasa recta, as well as the countercurrent in them, help in producing concentrated urine.

Hence urine in concentrated in the loop of Henle in Hairpin bend between descending and ascending limbs.

So, the correct answer is 'Hairpin bend between descending and ascending limbs'.