Write down one role of catecholamines.

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Catecholamines**:
Catecholamines are a group of monoamine hormones produced by the adrenal medulla, which is part of the adrenal glands located on top of each kidney. The main catecholamines include dopamine, adrenaline (also known as epinephrine), and noradrenaline (or norepinephrine).

2. **Role of Catecholamines**:
One significant role of catecholamines is to help the body respond to stressful situations. This response can be physical (like exercise) or emotional (like anxiety).

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