Across
- 3. Fluid-filled air sacs (alveoli)
- 6. Alveoli are damaged
- 8. Bacterial disease
Down
- 1. Inflamed bronchial tubes
- 2. Lung destroyed by the growth of a tumor
- 4. Lungs lose their elasticity
- 5. Viral infection
- 7. Tiny air passages become narrowed/blocked