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NEET Previous Year Question

$A fall in glomerular filtration rate (GFR) activates$

Topic: NEET PYQ

Answer: D. Full step-by-step solution below.

A $Adrenal cortex to release aldosterone$
B $Adrenal medulla to release adrenaline$
C $Posterior pituitary to release vasopressin$
D $Juxtaglomerular cells to release rennin$

Correct answer: D

Solution

(d) When GFR decreases, the juxtaglomerular (JG) cells in the kidney release renin. Renin activates the RAAS, which increases blood pressure and helps restore normal GFR.

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