Respiratory System

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Across
  1. 5. filters the airs particles
  2. 8. network of tubes that conduct air to the lungs
  3. 10. pair of soft cone shaped organs
  4. 11. part behind the mouth that connects the nose and mouth
  5. 12. carries air into the bronchial tree
  6. 13. to sets of heavy folds of tissue
  7. 14. filtering out airborne pollutants
Down
  1. 1. o2 enters the bloodand co2 leaves the body
  2. 2. common passage way for the repertory system and the digestive system
  3. 3. maintains a constant acid base balance
  4. 4. passage way for air and sound
  5. 6. small opeing in the larynx
  6. 7. part of the pharynx behind the nasal cavity
  7. 9. air sacs at the end of the bronchial tree
  8. 15. Pathway for air to enter and exit