Across
- 3. Type of disease triggered by bacterial or viral infection
- 5. Small sacs inside our lung
- 6. Type of disease that happened when the airway is too narrow
- 7. System that works on oxygen and carbon dioxide
Down
- 1. Person who first tests on lung in the respiratory system (First name only)
- 2. Small tubes with blood in it
- 4. Muscle that controls the chest cavities