A fall in glomerular filtration rate (GFR) activates

Options

A. juxtaglomerular cells to release renin
B. adrenal cortex to release aldosterone
C. adrenal medulla to release adrenaline
D. posterior pituitary to release vasopressin.

Answer

A

Explanation

A fall in GFR can stimulate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the GFR comes back to normal.