Question

how does our body respond when adrenalin is secreted into the blood?

Answer 1

When adrenaline is secreted into the blood it prepares our body for action. It speeds up heart beat and breathing, raises blood pressure and allows more glucose(Carbohydrate) to go into the blood to give us lot of energy quickly to run or fight. And Hence it is an emergency hormone. Additionally it is secreted in the body when body is under severe physical/emotional stress or depression.

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Answer 2

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