respiratory

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Across
  1. 1. Lung cancer can lead to the growth of this
  2. 4. Used to perform daily activities
  3. 6. Occurs when our body overreacts to certain substances
  4. 8. The air tubes lead to here
  5. 10. Tuberculosis is spread by this
  6. 11. Shortness of breath
  7. 12. There is 78% of this gas in the air we breathe
Down
  1. 2. Needed to break down sugar
  2. 3. Tiny balloon-like structures
  3. 5. Connects the nose to the air tubes
  4. 7. Moves outwards and upwards when we breathe in
  5. 9. Removed from our body when we breathe out