Respiratory System

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Across
  1. 4. air enters here (contains teeth)
  2. 7. exhale
  3. 8. rich network of blood capillaries
  4. 13. enclosed membrane
  5. 16. cavities hollow spaces by the nose
  6. 17. in/expiration
  7. 18. filter air
  8. 19. take blood to the heart
  9. 21. Septum wall of cartiledge dividing nose
  10. 24. voice box
  11. 25. 2 openings called nostrils
  12. 26. System this unit
  13. 27. Respiration cells using oxygen to make things
  14. 28. bronchospasms
Down
  1. 1. smallest branch of bronchi
  2. 2. leads into lungs
  3. 3. respiration exchange of gas in,lungs
  4. 5. expands and relaxes, under lungs
  5. 6. inhale
  6. 7. leaf like piece of cartiledge
  7. 9. throat
  8. 10. windpipe
  9. 11. and chroninc respiratory system disease
  10. 12. inflammation of the bronchi
  11. 14. respiration exchange of gas in cell tissue
  12. 15. breathing
  13. 20. take blood away from heart
  14. 22. cavities
  15. 23. 3 sections