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NEET2019ZoologyExcretory Products and their EliminationActual

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

Options

  1. ALow levels of antidiuretic hormone.
  2. BMaintaining hyperosmolarity towards inner medullary interstitium in the kidneys.
  3. CSecretion of erythropoietin by Juxtaglomerular complex.
  4. DHydrostatic pressure during glomerular filtration.

Correct answer

B. Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

Step-by-step solution

A hyperosmotic renal medullary interstitium is critically important in concentrating the urine and provides the driving force for the reabsorption of water from the collecting duct.

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