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1.\tWhat is the Renin-Angiotensin System? What do you mean by GFR?\t(3 |
| Answer» Glomerular filtration rate\xa0(GFR) is a test used to check how well the kidneys\xa0are\xa0working. Specifically, it estimates how much blood passes through the glomeruli each minute. Glomeruli\xa0are\xa0the tiny filters in the kidneys that filter waste from the blood. Angiotensin\xa0II constricts efferent arterioles, which forces blood to build up in the glomerulus, increasing glomerular pressure. The\xa0glomerular filtration rate\xa0(GFR) is thus maintained, and blood filtration can continue despite lowered overall kidney blood flow. | |