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Which hormone causes dilation of blood vessels, increased oxygen consumption and gluconeogenesis?

1. Insulin
2. Adrenaline
3. Glucagon
4. ACTH

Correct answer: Adrenaline

Solution

Adrenaline (epinephrine) is a catecholamine that prepares the body for stress by increasing oxygen consumption and stimulating gluconeogenesis. It also causes vasodilation in some vascular beds, helping redirect blood flow during the fight-or-flight response.

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