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| 1. |
Describe counter current mechanism |
| Answer» A\xa0countercurrent mechanism system\xa0is a\xa0mechanism\xa0that expends energy to create a concentration gradient. ... 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.\xa0The\xa0counter-current\xa0multiplier or the\xa0countercurrent mechanism\xa0is used to concentrate urine in the kidneys by the nephrons of the human excretory\xa0system. The nephrons involved in the formation of concentrated urine extend all the way from the cortex of the kidney to the medulla and are accompanied by vasa recta. | |