Respiratory System Crossowrd

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Across
  1. 5. system, transport of gases
  2. 8. breathing difficulty
  3. 10. little hairs that trap dirt
  4. 11. wind pipe
  5. 12. voice box
  6. 13. every cell need this to survive
  7. 14. first part of the tract
Down
  1. 1. respiration, Exchange of oxygen for carbon dioxide
  2. 2. where gas is exchanged
  3. 3. where respiratory system meets the digestive system
  4. 4. sheet of muscle that aids breathing
  5. 6. breathing in
  6. 7. System, transport of gases to the cells
  7. 9. palate, soft tissue in front of the pharynx
  8. 12. expands to allow gas in