Respiratory system

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Across
  1. 2. where the air travels after the nose
  2. 5. Passageway to the lungs
  3. 6. Bring oxygen into the blood
  4. 8. covers the trachea to prevent food from going into it
  5. 9. creates your voice
Down
  1. 1. 2 branches one for each lung
  2. 3. how the air enters the body
  3. 4. a major organ that helps inhale and exhale
  4. 7. Hair like microorganisms that get mucus out of the lungs