The Respiratory System

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Across
  1. 2. Inflates and deflates the lungs
  2. 4. A waste product & exchanged with oxygen
  3. 7. Connect the bronchus to the alveoli
  4. 8. Sends air to the lungs
  5. 10. What you smell with
  6. 11. Blood vessels in the walls of the alveoli
Down
  1. 1. The spontaneous movement of gases
  2. 3. Collects the air
  3. 5. What you need to breathe
  4. 6. Exchange oxygen and carbon dioxide in blood
  5. 7. Splits the air into each lung
  6. 9. Long curved bones