Describe the function of the heart.

Explanation

### Step-by-Step Solution:

1. **Structure of the Heart**: The human heart is divided into four chambers: the right auricle (or atrium), the right ventricle, the left auricle, and the left ventricle.

2. **Receiving Blood**: The right auricle receives impure blood from the entire body. This blood is low in oxygen and high in carbon dioxide.

3. **Pumping to the Lungs**: From the right auricle, the impure blood flows into the right ventricle. The right ventricle then pumps this blood to the lungs for purification.

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