Respiratory System

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