A student is about to appear for an examination in the next half an hour. He is extremely anxious. His face is flushed and his heartbeat has increased. Which of the following could be a probable reason for this?

Question

A student is about to appear for an examination in the next half an hour. He is extremely anxious. His face is flushed and his heartbeat has increased. Which of the following could be a probable reason for this?, Secretion of sleep-regulating hormones by the pineal gland, Secretion of glucocorticoids by the adrenal cortex, Secretion of TSH by the thyroid gland, Secretion of emergency hormones by the adrenal medulla

MARKS App · Accepted Answer

The adrenal medulla is responsible for secretion of hormones 'adrenaline' and 'noradrenaline', collectively known as 'catecholamines'. These hormones are also called as 'hormones of fight or flight' or 'emergency hormones'. They are responsible for the increase in heartbeat, respiratory rate, etc., in times of emergency situations in response to stress.

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