The Respiratory System

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Across
  1. 5. larynx
  2. 7. oxygen
  3. 8. nose
  4. 9. to breathe
  5. 11. chest
Down
  1. 1. voice
  2. 2. lung
  3. 3. bronchus
  4. 4. windpipe
  5. 6. sinus
  6. 10. pleura