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Question

A fall in glomerular filtration rate activates


A
Juxta glomerular cells to release renin
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B
Adrenal cortex to release aldosterone
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C
Adrenal medulla to release adrenaline
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D
Posterior pituitary to release vasopressin
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Solution

The correct option is A Juxta glomerular cells to release renin
One of the effects of the sympathetic nervous system is to stimulate renin secretion by the juxtaglomerular cells, activating the renin-angiotensin-aldosterone system (RAAS). The RAAS increases extracellular fluid volume by increasing sodium reabsorption which is the fall in glomerular filtration rate.
Thus, the correct answer is option (A), 

Biology

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