The Human Body: The Respiratory System

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Across
  1. 3. The lower portion of the pharynx
  2. 4. The two major air passageways
  3. 6. The passage that leads from the cavities of the nose and mouth to the larynx
  4. 7. Muscular organ that holds the vocal cords
  5. 12. The system that contains the organs which take in oxygen and carbon dioxide
  6. 13. The upper portion of the pharynx
  7. 14. The "wind pipe" that connects to the larynx
  8. 15. Air sacks
  9. 16. A flap of elastic cartilage attached to the larynx
Down
  1. 1. What humans breathe in
  2. 2. The middle portion of the pharynx
  3. 5. An example of a short term respiratory disease
  4. 8. An example of a chronic respiratory disease that requires an inhaler
  5. 9. Smallest air passageways
  6. 10. The muscle that pushes up against the lungs as we exhale, and relaxes to allow lungs to expand when we inhale
  7. 11. What humans breathe out