Blood pressure and heart beat is regulated by

Insulin

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Adrenalin

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Optic nerve

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Growth hormone

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Solution

The correct option is B Adrenalin
Epinephrine (adrenaline) and norepinephrine (noradrenaline) is a neurotransmitter which regulates the contraction and relaxation of the heart. The effect of adrenalin is known as the fight-or-flight response. It increases the heart beat.
So, the correct answer is option B.

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Increase in the blood pressure and heart beat is caused by the hormone

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