Across
- 4. (swelling or inflammation of the bronchi)
- 10. (carbon dioxide carried up and out of body)
- 12. (most common illness that affects the respiratory system)
- 13. (lower respiratory tract, main organs of respiratory system)
- 14. (a tube that moves air to and from the lungs)
- 15. (air sacs in lungs become enlarged, lose elasticity)
Down
- 1. (group of muscles used for exhaling)
- 2. (within the lungs are air passages)
- 3. (a fairly common condition that can make breathing difficult)
- 5. (millions of tiny air sacs)
- 6. (air is carried into alveoli)
- 7. (an infection of the lungs that causes difficulty breathing)
- 8. (when cancer cells grow out of control and destroy the air sacs)
- 9. (cavity that connects nose and mouth to esophagus)
- 11. (upper respiratory tract)