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The glomerular filtrate in the loop of Henle gets concentrated in the descending and then gets diluted in the ascending limbs. Explain.

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The Henle's loop has two limbs. An ascending limb and a descending limb. The descending limb allows water to pass through but does not allow any electrolytes.

So, the presence of electrolytes leads to an increase in the concentration as we move down the descending loop. The other limb of Henle's loop, which is the ascending limb, allows electrolytes to pass through but does not allow the passage of water.

So, as we move towards the ascending limb of Henle's loop, the concentration decreases, and the filtrate gets diluted.

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