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The efferent arterioles are blood vessels that are part of the urinary tract of organisms. Efferent (from Latin ex + ferre) means "outgoing", in this case meaning carrying blood out away from the glomerulus.
13 sty 2023 · Afferent and efferent arterioles transport blood in and out of the glomerulus. Hypovolemia-induced reduction in glomerular filtration leads to decreased flow of NaCl to specialized epithelial cells (macula densa).
17 lip 2023 · Angiotensin II normally constricts the efferent arteriole, so ACE inhibitors (or angiotensin receptor blockers) dilate the afferent arteriole. Note that endogenously produced compounds (PGE2 and Angiotensin II) increase the GFR, and exogenous medications decrease the GFR (NSAIDS and ACEi or ARBs).
These then leave the glomerulus through the efferent arteriole, which becomes capillaries meant for kidney–oxygen exchange and reabsorption before becoming venous circulation. The positively charged podocytes will impede the filtration of negatively charged particles as well (such as albumins).
24 lip 2023 · Angiotensin II plays many different roles. It acts on angiotensin II receptors to induce vasoconstriction and increase blood pressure. It also preferentially constricts efferent arterioles to increase the filtration when RBF is low.
1 sty 2015 · Here also the afferent arteriole can be visualized, as well as the efferent arteriole. This in vitro perfused kidney model does have a functional TGF system. A third widely applied method is to analyze the relationship between RBF and arterial pressure fluctuations by time series analysis.
30 paź 2023 · The blood supply to the glomerulus is provided via the afferent arteriole. The blood then flows through the capillary network, where it gets filtered, and then leaves the glomerulus via the efferent arteriole. The ultrafiltrate is collected in the Bowman's space and drains directly into the proximal tubule of the nephron.
