The 'fight-or-flight' response is caused by:

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(C) The 'fight-or-flight' response is an immediate physiological reaction to a stressful or dangerous situation.This response is primarily mediated by

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Adrenal medulla - stimulates the secretion of epinephrine and norepinephrine.

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(C) The 'fight-or-flight' response is an immediate physiological reaction to a stressful or dangerous situation.This response is primarily mediated by the adrenal medulla.Upon stimulation by the sympathetic nervous system,the adrenal medulla secretes catecholamines,specifically epinephrine (adrenaline) and norepinephrine (noradrenaline).These hormones prepare the body for immediate physical action by increasing heart rate,dilating airways,and mobilizing energy reserves.

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