Respiratory system

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Across
  1. 2. Organ where the air enters the body.
  2. 6. Home of vocal cords. Air passes here.
  3. 7. Air circulates here to reach alveoli.
Down
  1. 1. Air circulates from the nasal passage to the larynx.
  2. 3. Duct that directs air to the bronchial tubes.
  3. 4. Sacs where gas exchange occurs.
  4. 5. Tubes that enter the lungs.