Respiratory system

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Across
  1. 6. CF
  2. 7. the throat
  3. 10. provide mucus, make bones of the skull lighter, aid in sound production
  4. 12. specializes in treating the respiratory system
  5. 14. inflammation of the lungs in which the alveoli and other passages fill up with pus
  6. 15. the voice box
Down
  1. 1. performs operations on the organs inside the thorax and chest
  2. 2. closes off the trachea during swallowing
  3. 3. URI
  4. 4. shortness of breath
  5. 5. difficulty in speaking
  6. 8. covers the outer surface of the lungs and lines the inner surface of the thoracic cavity
  7. 9. handheld device to measure airflow out of the lungs
  8. 11. muscle that separates the thoracic cavity from the abdomen
  9. 13. the windpipe