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

1. Hydrostatic pressure during glomerular filtration.
2. Low levels of antidiuretic hormone.
3. Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.
4. Secretion of erythropoietin by Juxtaglomerular complex.
Subtopic:  Concentration of Urine: I | Concentration of Urine: II | Concentration of Urine |
 75%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh