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Question : Describe the working of artificial kidney |
Answer» Solution :Artificial kidneys contain a number of tubes with a semi-permeablelining suspended in a tank filled with dialysingfluid. This fluid has the same osmotic pressure as pure BLOOD, except that it is devoid of nitrogenous WASTES. The patient.s blood is passed through these . Duringthis passage, the wasteproducts from the blood PASS into dialysingfluid by diffusion due to CONCENTRATION gradient. Thepurified blood is then pumped back into thepatient . This is similar to the function of the kidney, but it is differentsince there is no reabsorptioninvolved.
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