Respiratory system

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Across
  1. 1. Heart
  2. 4. Diagram
  3. 7. Alveoli
  4. 9. Lungs
  5. 10. Nasal
Down
  1. 2. Trachea
  2. 3. bronchioles
  3. 5. Larynx
  4. 6. Bronchus
  5. 8. Oral