Biology · PYQ NEET UG 2019(1)

Which of the following factors is responsible for the formation of concentrated urine?

A
Secretion of erythropoietin by juxtaglomerular complex.
B
Hydrostatic pressure during glomerular filtration.
C
Low levels of antidiuretic hormone.
D
Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

View Answer & Solution

Correct answer · Option D

Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

A counter-current mechanism maintaining hyperosmolarity in the medullary interstitium allows the concentration of urine.