MEDICAL
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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selective diffusion
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osmosis
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active transport
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co-transport
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Detailed explanation-1: -The loop of Henle is supplied by two vasa recta which are straight vessels closely accompanying the tubule’s hairpin-shaped course. These carry blood in opposite directions, just like the passage of tubular fluid – the countercurrent mechanism. Thus they absorb water on the one hand and solute on the other.
Detailed explanation-2: -In summary, the loop of Henle is surrounded by tissue fluid which has a high concentration of ions in it. This causes water to move out of the descending limb by osmosis. This produces a more concentrated filtrate because of this, ions move out of the loop in the thin ascending limb.
Detailed explanation-3: -Water reabsorption is by osmosis through water channels in the membrane. These water channels consist of a family of proteins called aquaporin. At least seven different aquaporin isoforms are expressed in the kidney.