The Breathing System

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Across
  1. 2. Transport air into lung.
  2. 5. Moves down and flattens during inhalation
  3. 6. Prevents food from passing into the windpipe when you swallow.
  4. 8. Protects the lungs
  5. 9. Breathing in
  6. 11. Keeps trachea and bronchi open.
  7. 13. Gases move in and out of the alveoli by this process.
  8. 14. Breathing out
  9. 16. Site of gas exchange
  10. 18. Breathing disorder
  11. 19. Connects nose and mouth to larynx
  12. 22. Contracts to move the ribcage.
  13. 23. Allow friction free movement of lungs
Down
  1. 1. Transport air into alveoli
  2. 3. Diffuses out of the capillaries into the alveoli
  3. 4. Location of the lungs
  4. 7. Part of the brain that controls breathing
  5. 10. Allows air to be filtered moistened and warmed.
  6. 12. Diffuses from the alveoli into the blood capillaries
  7. 15. Allows air to pass into lungs
  8. 17. Makes sounds when vocal cords vibrate.
  9. 19. Adaptation of the alveoli
  10. 20. Allow air to enter the nose. Separated by septum.
  11. 21. Draw mucus and trap dust out of lungs.