respiratory system

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Across
  1. 3. another way to intake air into the body
  2. 4. protect the trachea for not aspirating food
  3. 6. exchanges the oxygen and carbon dioxide
Down
  1. 1. takes the air into the lungs
  2. 2. connects the trachea to the lungs
  3. 5. reponsible for intaking the air into the body
  4. 7. the main organ of respiratory system