NEET 2014 Biology question

Fight-or-flight reactions cause activation of

(1)The parathyroid glands, leading to increased metabolic rate
(2)The kidney, leading to suppression of renin-angiotensin-aldosterone pathway
(3)The adrenal medulla, leading to increased secretion of epinephrine and norepinephrineCorrect
(4)The pancreas leading to a reduction in the blood sugar levels

Answer: (3)

Solution

In stress/emergency (fight-or-flight) situations the sympathetic nervous system stimulates the adrenal medulla to secrete adrenaline (epinephrine) and noradrenaline (norepinephrine), which raise the heart

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Question ID VK-091632