Please explain me how the concentration of the filtrate varies in the descending and ascending limb of Henle's Loop?
Please find below the solution to the asked query:
Descending limb of loop of Henle is permeable to water and impermeable to electrolytes. The filtrate present in it has more water as compared to outside, so water moves out of the descending limb that concentrates the filtrate. Thus, basically water moves out of filtrate that concentrates the filtrate.
Ascending limb of loop of Henle is impermeable to water and permeable to electrolytes. The filtrate in it has more electrolytes, so electrolytes move out of the ascending limb that dilutes the filtrate. Thus, basically e moves out of filtrate that concentrates the filtrate.
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