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the descending limb of vasa recta. $\mathrm{NaCl}$ is returned to the interstitium e ascending portion of vasa recta. Similarly, small amounts of urea the thin segment of the ascending limb of Henle's loop which is sported back to the interstitium by the collecting tubule. The above ribed transport of substances facilitated by the special arrangement enle's loop and vasa recta is called the counter current mechanism are. 19.6). This mechanism helps to maintain a concentration gradient Diagrammatic representation of a nephron and vasa recta she ing counter current mechanisms countor I - t exchonge

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Updated on: Dec 29, 2022