Explain how the glomerular filtration rate is maintained by the kidneys?
Maintenance of the glomerular filtration rate is carried out by the juxtaglomerular apparatus in the kidneys.
It is the region formed by the close contact between the distal convoluted tubule and the afferent arteriole at a region.
When GFR falls, it stimulates JGA to release rennin.
Renin helps to bring reduced GFR back to normal.
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