Arteries normally carry oxygen rich blood whereas veins normally carry carbon dioxide rich blood.
Name one artery which carries carbon dioxide rich blood.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for an artery that carries carbon dioxide-rich blood, which is contrary to the typical function of arteries.

2. **Identifying the Exception**: While most arteries carry oxygen-rich blood, there is an exception in the circulatory system.

3. **Naming the Artery**: The artery that carries carbon dioxide-rich blood is the **pulmonary artery**.

4. **Function of the Pulmonary Artery**: The pulmonary artery transports blood from the right ventricle of the heart to the lungs. This blood is low in oxygen and high in carbon dioxide.

5. **Role in Gas Exchange**: In the lungs, the blood releases carbon dioxide and absorbs oxygen, thus becoming oxygen-rich blood before it returns to the heart through the pulmonary veins.

**Final Answer**: The pulmonary artery is the artery that carries carbon dioxide-rich blood.

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