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| 1. |
Can anyone please explain the mechanism of concentration of the filtrate. |
| Answer» A\xa0counter-current 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. The\xa0counter-current mechanism\xa0takes place in Juxtamedullary\xa0nephron. The function of the\xa0counter-current multiplier\xa0is to produce the hyperosmotic Medullary Interstitium. The ADH promotes water reabsorption through the walls of the distal convoluted tubule and collecting duct. Mammals have the ability to produce concentrated urine. The Henle\'s loop and vasa recta plays significant role in concentrating urine. The flow of\xa0filtrate\xa0in two limb of Henle\'s loop and blood flow in two limbs of vasa recta are in opposite direction hence form counter current. | |