respiratory

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Across
  1. 1. brochus;brochial tube
  2. 4. diagram
  3. 7. blood
  4. 9. larynx;voice box
  5. 12. cancer
  6. 13. lung
  7. 14. epiglottis
  8. 16. nose
  9. 17. vessel
  10. 18. lobe
  11. 19. tissue
Down
  1. 2. heart
  2. 3. cast;throw
  3. 5. incomplete;imperfect
  4. 6. oxygen
  5. 8. blue
  6. 10. artery
  7. 11. to enlarge;expand
  8. 15. fiber