i) Adrenaline is an emergency hormone. Why ?i) Write any two differenc

1.	i) Adrenaline is an emergency hormone. Why ?i) Write any two differences between endocrine and Nervous system.
Answer» Adrenalineis ahormonesecreted by adrenal medulla during stress. This is called asemergency hormonebecause it initiates quick reation which makes the individual to think and respond quickly to the stress. The hormoneincreases metabolic rate. there occurs dialation of blood vessels going to heart and the brain. Thebiggestdifference between the twoisthat the nervous systemuses electrical impulses to send signals through neurones, whereasthe hormonal systemuses chemical messengers transported into blood plasma to target cells. This means thatcommunication is faster when usingthe nervous system

i) Adrenaline is an emergency hormone. Why ?i) Write any two differences between endocrine and Nervous system.

Answer»

Adrenalineis ahormonesecreted by adrenal medulla during stress.

This is called asemergency hormonebecause it initiates quick reation which makes the individual to think and respond quickly to the stress.

The hormoneincreases metabolic rate. there occurs dialation of blood vessels going to heart and the brain.

Thebiggestdifference between the twoisthat the nervous systemuses electrical impulses to send signals through neurones, whereasthe hormonal systemuses chemical messengers transported into blood plasma to target cells. This means thatcommunication is faster when usingthe nervous system

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