We can produce concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism.

Question

We can produce concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism. (A) Reabsorption from PCT (B) Reabsorption from Collecting duct (C) Reabsorption/ Secretion in DCT (D) Counter current mechanism in Henle's loop/Vasa recta

Tardigrade Admin · Accepted Answer

The counter current mechanism helps to concentrate the filtrate which occurs in loop of Henle and vasa recta in the medulla region of the kidney. This gradient is mainly caused by NaCI and urea. It helps in easy absorption of water from the filtrate present in the collecting duct so that the concentration of the filtrate (urine) is increased. Therefore, hypertonic urine is produced in human beings

Q. We can produce concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism.

Reabsorption from $PCT$

Reabsorption from Collecting duct

Reabsorption/ Secretion in $D CT$

Counter current mechanism in Henle's loop/Vasa recta