Lungs & Breathing

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Across
  1. 2. The small air sacs on our lungs
  2. 5. Thickness of the Alveoli walls
  3. 6. The number of Bronchi we have
  4. 7. Invented to help people stop smoking
  5. 8. A mild breathing problem
  6. 10. Often mistake for the ribs
  7. 14. The gas plants make
  8. 16. The main muscle used in breathing
  9. 18. Size of our lungs when we breathe in
  10. 19. The experiment we use to model breathing
  11. 20. The direction our Diaphragm goes when we breathe in
  12. 21. In diffusion the particles go from this to low concentration
  13. 22. Something that causes cancer
Down
  1. 1. The Lungs are part of this body system
  2. 3. The chemical found in cigs
  3. 4. Early symptoms of lung disease by smoking
  4. 6. Also known as the windpipe
  5. 9. Diffusion is the movement of oxygen to this
  6. 10. What nicotine does to your heart rate
  7. 11. A disease caused by smoking
  8. 12. Pressure goes in this direction when we breathe out
  9. 13. What we breathe out
  10. 15. Branches off of the Bronchi
  11. 17. Smog is an example of this