Fight-or-flight reactions cause activation of:

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Fight-or-flight reactions cause activation of:

1. the parathyroid glands, leading to increased metabolic rate.
2. the kidney, leading to suppression of reninangiotensin-aldosterone pathway.
3. the adrenal medulla, leading to increased secretion of epinephrine and norepinephrene.
4. the pancreas leading to a reduction in the blood sugar levels.

Correct Option: C

Adrenal Medulla is called emergency gland and secretes adrenaline (Epinephrine) and nor-adrenaline (nor-epinephrine) hormones. Adrenaline (epinephrine) is commonly called as ‘emergency hormone’ or 3F – hormone (For fear, fight & flight). It stimulates sweating, heart beat and breathing rate. It causes the dilation of coronary artery (supplying blood to the heart muscles), bronchioles (for increasing inspiratory volume) and pupil (for better vision).