Across
- 3. Air sacs in the lungs that exchange carbon dioxide and oxygen
- 5. Primary organ
- 6. Two airways leading to the lungs
- 7. Muscle that pushes on the lungs
- 10. Nasal cavity
- 11. The _____ system contains your lungs and diaphragm.
- 12. Pharynx
- 14. _____ is bad for your lungs.
- 15. Flap that closes the airway when food is going down the throat
- 16. The Respiratory system takes in _____.
Down
- 1. Small airways in the lungs
- 2. Lung diseases
- 4. Hold the voicebox
- 8. Oral cavity
- 9. The respiratory system puts out _____.
- 13. Windpipe