Respiratory system cross word puzzle

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Across
  1. 2. radioactive image of the lungs
  2. 5. blood pressure
  3. 10. an operation to open the chest
  4. 12. condition
  5. 13. machine that acts as bellows to move air in and out of your lungs
  6. 15. a physician who specializes in the respiratory system
  7. 17. artery
  8. 18. The area of the throat containing the vocal cords and used for breathing, swallowing, and talking
Down
  1. 1. process of cutting
  2. 3. inflammation of epiglottitis
  3. 4. chest
  4. 6. A group of recordings taken during sleep that shows brain wave changes, eye movements, breathing rate, blood pressure, heart rate, and the electrical activity of the heart and other muscles.
  5. 7. fast
  6. 8. carry air into lungs
  7. 9. tonsil
  8. 11. A ridge at the base of the trachea (windpipe) that separates the openings of the right and left main bronch
  9. 12. emergency room
  10. 14. temporary interruption of breathing
  11. 16. against