Respiratory System

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Across
  1. 4. inspiration and expiration
  2. 6. 3 lobes in the right
  3. 7. smaller branches
  4. 9. breathe in through the nose
  5. 10. voice box
Down
  1. 1. windpipe
  2. 2. what closes and open when you swallow
  3. 3. the process of breathing
  4. 5. air sacs
  5. 8. breathe in through the mouth