respiratory system

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Across
  1. 2. in charge of deflating and inflating your lungs
  2. 3. organ that collects air
  3. 5. a pipe that sends oxygen to the lungs
  4. 7. air that without it you will not live
  5. 8. we use it for smelling
Down
  1. 1. small air tubes
  2. 4. at the end of the trachea splits air both lungs
  3. 6. sacks that exchange oxygen