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Renin :- machinism in Regulating kidny

Answer» Kidney have a special GFR(Glomerular Filtration Rate) regulating mechanism i.e. JGA(Juxta Glomerular Apparatus). It is the modified cells formed where DCT and efferent blood vessel come in contact. When GFR of kidney become low then JGA secrets renin which stimulates blood flow and make GFR to normal.


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