What is activated by a decrease in the GFR ra | vedclass

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(A) The kidneys have built-in mechanisms for the regulation of the Glomerular Filtration Rate $(GFR)$.One such efficient mechanism is carried out by t

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$JG$ cells release renin

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(A) The kidneys have built-in mechanisms for the regulation of the Glomerular Filtration Rate $(GFR)$.One such efficient mechanism is carried out by the Juxtaglomerular Apparatus $(JGA)$.$JGA$ is a special sensitive region formed by cellular modifications in the Distal Convoluted Tubule $(DCT)$ and the afferent arteriole at the location of their contact.$A$ fall in $GFR$ activates the $JG$ cells to release renin,which stimulates the glomerular blood flow and thereby brings the $GFR$ back to normal levels.

What is activated by a decrease in the $GFR$ rate?

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