Question

Explain counter current mechanism
Pls answer it quickly

Answer 1

It is found widely in nature and especially in mammalian organs. For example, it can refer to the process that is underlying the process of urine concentration, that is, the production of hyperosmotic urine by the mammalian kidney.[1] The ability to concentrate urine is also present in birds.[1]

Answer 2

Unless one is drinking very large quantities of water, the urine has to be excreted in a concentrated form. Otherwise, the body will lose a lot of water and the person will suffer from the effects of dehydration and low blood pressure. The mechanism that the kidneys use to concentrate urine is called the countercurrent mechanism. In order to understand countercurrent mechanism, first, we have to understand how a countercurrent multiplier works.