Single correct option
Which hormone prepares the body to face an emergency situation (the fight or flight response)?
- A. Insulin
- B. Adrenaline
- C. Thyroxine
- D. Oestrogen
Show answer and solution
Answer: (B) Adrenaline
Adrenaline from the adrenal medulla increases heart rate, blood pressure and blood glucose, and diverts blood to the muscles during stress. Insulin lowers blood glucose, thyroxine regulates the metabolic rate over a longer period, and oestrogen is a female sex hormone.
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