A man suddenly sees a tiger. His heartbeat goes up, blood pressure increases, etc. Which hormone is released at this time in his body?
A
Parathormone
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B
Adrenaline
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C
Corticoid
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D
Thyroxine
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Solution
The correct option is B Adrenaline a) Epinephrine (adrenaline) and norepinephrine are the secreted by adrenal medulla under the emergency condition to prepare the body for flight or fight response by increasing the heartbeat rate and blood pressure.
b) Parathormone of parathyroid gland reduces the blood phosphate level while increases the blood calcium level. Therefore, thyroid and parathyroid gland together maintain the blood glucose level to normal.
c) Thyroxine is a thyroid hormone which targets all tissues and stimulates metabolic rate, growth, and development.
d) Adrenocorticotropic hormone (ACTH) is secreted by anterior pituitary which targets the adrenal cortex to stimulate secretion of corticoids, the hormones which prepare the body for long-term stress responses.