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1. What is the Renin-Angiotensin System? …

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1. What is the Renin-Angiotensin System? What do you mean by GFR? (3
  • 1 answers

Meghna Thapar 4 years, 1 month ago

Glomerular filtration rate (GFR) is a test used to check how well the kidneys are working. Specifically, it estimates how much blood passes through the glomeruli each minute. Glomeruli are the tiny filters in the kidneys that filter waste from the blood. Angiotensin II constricts efferent arterioles, which forces blood to build up in the glomerulus, increasing glomerular pressure. The glomerular filtration rate (GFR) is thus maintained, and blood filtration can continue despite lowered overall kidney blood flow.

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