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Fight - or - flight reactions cause activation of:

  • Option 1)

    the parathyroid glands, leading to increased metabolic rate.

  • Option 2)

    the kidney, leading to suppression of reninangiotensin - aldeosterone pathway.

  • Option 3)

    the adrenal medulla, leading to increased secretion of epinephrine and norepinephrene.

  • Option 4)

    the pancreas leading to a reduction in the blood sugar levels.

 

Answers (1)

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As learnt in

Adrenaline and noradrenaline -

Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during emergency situations and are called emergency hormones or hormones of Fight or Flight

- wherein

These hormones increase alertness, pupilary dilation, piloerection (raising of hairs), sweating etc. Both the hormones increase the heart beat, the strength of heart contraction and the rate of respiration. Catecholamines also stimulate the breakdown of glycogen resulting in an increased concentration of glucose in blood. In addition, they also stimulate the breakdown of lipids and proteins

 

 


Option 1)

the parathyroid glands, leading to increased metabolic rate.

This option is incorrect

Option 2)

the kidney, leading to suppression of reninangiotensin - aldeosterone pathway.

This option is incorrect

Option 3)

the adrenal medulla, leading to increased secretion of epinephrine and norepinephrene.

This option is correct

Option 4)

the pancreas leading to a reduction in the blood sugar levels.

This option is incorrect

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