Across
- 4. An infection that fills the lung with fluids.
- 6. Inflammation of the bronchi
- 7. Main function
Down
- 1. Air sacs where the oxygen moves into the blood.
- 2. The main organ
- 3. Uncontrollable cell growth in the lungs
- 5. A disease when the airways become narrow
- 7. Help carry the oxygen to and from the heart