Respiratory System

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Across
  1. 1. The process by which air is moved in and out of the lungs
  2. 3. Also known as the throat.
  3. 5. Is a hollow tube strengthened and kept open by rings of cartilage.
  4. 7. tiny air sacs
  5. 8. What the lungs exhale whilst breathing
  6. 10. Main source of inhaling air.
  7. 12. Branch like.
  8. 14. The larger branch like veins
  9. 16. Our body needs this to breath
Down
  1. 2. Air movement from the lungs to the atmosphere.
  2. 4. The process by which the body takes in oxygen and removes carbon dioxide
  3. 6. Protects the lungs
  4. 9. Air moving from the atmosphere into the lungs.
  5. 11. second main source of inhaling air
  6. 13. Where the air enters the lungs.
  7. 15. Two bag like Organs