Respiratory System

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Across
  1. 2. this is located in the left lung
  2. 5. air enters through this
  3. 7. protects the lungs
  4. 8. voice box
  5. 9. transports oxygen into bloodstream and takeaway CO2
  6. 10. two large tubes in the lungs
  7. 11. tiny hairs that trap dirt and particles
Down
  1. 1. keeps lungs strong and healthy
  2. 3. tiny air sac at end of bronchioles
  3. 4. three sections in right lung
  4. 6. deadly build-up of waste gas