+1 vote
in Class 11 by kratos

***** or flight reactions cause activation of

(a) the parathyroid glands, leading to increased metabolic rate

(b) the kidney, leading to suppression of reninan giotensin-aldosterone pathway

(c) the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine

(d) the pancreas leading to a reduction in the blood sugar levels

1 Answer

+1 vote
by kratos
 
Best answer

The correct option is (c) the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine.

Explanation:

***** or flight reaction is a physiological reaction that occurs is response to emergency. Emergency hormone is secreted by adrenal medulla of adrenal gland. Adrenal medulla secretes epinephrine and non-epinephrine commonly called catecholamines hormones which stimulates sweating, heartbeat and breathing rate.

These hormones also causes dilation of coronary artery (supplying blood to heart muscles) a bronchioles ( for increasing inspiratory volume) and pupil ( for better vision).

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