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Biology · PYQ NEET UG 2019(1)

हिन्दी

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

  1. Secretion of erythropoietin by juxtaglomerular complex.
  2. Hydrostatic pressure during glomerular filtration.
  3. Low levels of antidiuretic hormone.
  4. Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

Correct answer · Option 4

Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

Explanation

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