Fight-or-flight reactions include activation of the ________. A. parathyroid glands, leading to increased metabolic rate B. anterior pituitary gland, leading to cessation of gonadal function C. adrenal medulla, leading to increased secretion of epinephrine D. pancreas, leading to a reduction in the blood sugar concentration

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katieeee361 katieeee361

23-08-2022
Biology

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Fight-or-flight reactions include activation of the ________. A. parathyroid glands, leading to increased metabolic rate B. anterior pituitary gland, leading to cessation of gonadal function C. adrenal medulla, leading to increased secretion of epinephrine D. pancreas, leading to a reduction in the blood sugar concentration

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pankajpal6971 pankajpal6971 · Answer 1 · 2022-08-25T19:58:26+02:00

Flight-or-fight reactions include activation of the adrenal medulla leading to increased epinephrine.

Hence, Option C is the correct answer.

What is a flight-or-fight response?

Flight or fight response represents a homeostatic mechanism or response towards events that might be a threat to our survival.

What is epinephrine?

Epinephrine is the principal hormone that interacts with the sympathetic nervous system in the initial part of the fight-or-flight response.

How does stress activate the adrenal gland?

In case of acute stress, the amygdala sends a signal to activate the sympathetic nervous which further stimulates the adrenal medulla through a combination of nerve and hormonal signals to release a surge of hormones, including adrenaline and cortisol. triggering the release of epinephrine (adrenaline) in the bloodstream. As the epinephrine flows through the body, it causes a number of physiological changes (faster heartbeat, pushing blood to the heart, muscles, and other vital organs) and also increases the energy supply to all body parts. These changes lead to heavy breathing to take as much oxygen as possible. The extra oxygen is sent to the brain leading to increased alertness, sharper sight, hearing, and other senses.

Thus from the above conclusion, we can say that fight-or-flight reactions include activation of the adrenal medulla.

Hence, option C is the correct answer.

Learn more about flight-or-fight response here:

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