What does the JGA (Juxtaglomerular Apparatus) | vedclass

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(A) The $JGA$ (Juxtaglomerular Apparatus) is a specialized sensitive region formed by cellular modifications in the distal convoluted tubule and the a

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$GFR$ (Glomerular Filtration Rate)

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(A) The $JGA$ (Juxtaglomerular Apparatus) is a specialized sensitive region formed by cellular modifications in the distal convoluted tubule and the afferent arteriole at the location of their contact.When there is a fall in $GFR$ (Glomerular Filtration Rate),the $JGA$ cells are activated to release renin.Renin converts angiotensinogen in the blood to angiotensin $I$ and further to angiotensin $II$.Angiotensin $II$ acts as a powerful vasoconstrictor,which increases the glomerular blood pressure and thereby increases the $GFR$ back to normal.Thus,the $JGA$ plays a complex regulatory role in controlling the $GFR$.

What does the $JGA$ (Juxtaglomerular Apparatus) control?

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