How does the structure of a nephron encourage concentration of urine? What is the name of...

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How does the structure of a nephron encourage concentration ofurine? What is the name of this process and how does it work?

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Lets study it in detailed manner I explained almost everything So that you can understand whole process Thank you All the best FORMATION OF CONCENTRATED URINE When the water content in body decreases kidney retains water and excretes concentrated urine Formation of concentrated urine is not as simple as that of dilute urine It involves two processes 1 Development and maintenance of medullary gradient by countercurrent system 2 Secretion of ADH DEVELOPMENT AND MAINTENANCE OF MEDULLARY GRADIENT Kidney has some unique mechanism called counter current mechanism which is responsible for the develop ment and maintenance of medullary gradient and hyper osmolarity of interstitial fluid in the inner medulla A countercurrent system is a system of Ushaped tubules tubes in which the flow of fluid is in opposite direction in two limbs of the Ushaped tubules Divisions of Countercurrent System Countercurrent system has two divisions 1 Countercurrent multiplier formed by loop of Henley Loop of Henle functions as countercurrent multiplier It is responsible for development of hyperosmolarity of medullary interstitial fluid and medullary gradient Loop of Henle of juxtamedullary nephrons plays a major role as countercurrent multiplier because loop of these nephrons is long and extends upto the deeper parts of medulla Main reason for the hyperosmolarity of medullary interstitial fluid is the active reabsorption of sodium chloride and other See Answer

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