Respiratory system

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Across
  1. 2. exits your lungs when you exhale
  2. 3. the airway from the larynx to the bronchi
  3. 7. voicebox
  4. 9. 2 external openings in the nasal cavity
  5. 13. muscles that run between the ribs and let the lungs contract and expand
  6. 15. the process of letting air out of the lungs
  7. 16. Throat
  8. 18. eyelash
  9. 19. 2 large tubes that carry air from your windpipe to your lungs
Down
  1. 1. dome shaped muscular partition separating the thorax and the abdomen
  2. 4. connects the pharynx to the stomach
  3. 5. primary branch of a bronchus
  4. 6. the process of letting air into the lungs
  5. 8. contains digestive organs
  6. 10. protects lungs
  7. 11. the most important organ in the respiratory system
  8. 12. The action of breathing.
  9. 14. protects larynx
  10. 17. tiny air sockets in the lungs
  11. 20. goes into your lungs when you inhale