Across
- 4. Two spongy organs that help you breathe
- 6. A healthy behavior that is good for the lungs
- 9. A shared pathway for air and food
- 10. Two large tubes that branch off the trachea into the lungs
- 12. To breathe air out of your lungs
- 13. Tiny air sacs where oxygen enters the blood
- 14. The body area where the lungs are located
- 15. The windpipe that carries air to the lungs
- 16. The voice box that helps you speak
- 17. An unhealthy behavior that damages the lung
- 18. A gas your body needs for energy
Down
- 1. Smaller tubes inside the lungs that branch from the bronchi
- 2. The body part that filters and warms air
- 3. Sticky substance that traps dust and germs
- 5. The body system that helps you breathe
- 7. To breathe air into your lungs
- 8. The dome-shaped muscle that helps you inhale and exhale
- 10. The process of moving air in and out of the lungs
- 11. Tiny hairs that sweep dust and germs out of airways