Respiratory System

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Across
  1. 2. bones protecting the respiratory system
  2. 4. area below the lungs
  3. 5. flap separating food from going down the windpipe
  4. 8. voice box
Down
  1. 1. main entrance point for air
  2. 3. tube bringing air to the lungs
  3. 6. Main respiratory organ
  4. 7. The windpipe