Respiratory Crossword

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Across
  1. 4. larger air passages of the lungs
  2. 6. roof of mouth
  3. 8. middle part of pharynx
  4. 9. flap of cartilage covering windpipe
  5. 12. membrane that covers surface of lungs
  6. 13. the voice box
  7. 14. bones in the sides of the nasal cavity
Down
  1. 1. relating to hollow structure
  2. 2. entrance to the respiratory tract, smell
  3. 3. windpipe
  4. 5. tiny air sacs of the lungs
  5. 6. major nerve
  6. 7. spongy,air-filled organs
  7. 10. passageway from mouth to nose
  8. 11. large ductless gland in the neck