Which part of the body is affected by Emphysema?

Explanation

**Step-by-Step Solution:**

1. **Understanding Emphysema**: Emphysema is a chronic respiratory disease that primarily affects the lungs. It is classified as a type of chronic obstructive pulmonary disease (COPD).

2. **Identifying the Affected Area**: The specific part of the lungs that is affected by emphysema is the alveoli, which are the tiny air sacs where gas exchange occurs.

3. **Function of Alveoli**: Alveoli play a crucial role in the respiratory system by allowing oxygen to enter the bloodstream and carbon dioxide to be expelled from the body.

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