Everything about everything

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Across
  1. 3. is a doctor who treats children
  2. 6. method of administering medication under the skin
  3. 7. progressive respiratory disease which occurs as a result of bronchial damage
  4. 9. the largest artery
  5. 10. the organ with which we chew
  6. 11. part of the body with which we walk
  7. 12. an injury in which the skin turns blue
Down
  1. 1. damage to the surface layer of the skin
  2. 2. substance used to wipe surfaces to disinfect
  3. 4. disease characteristic of the stomach
  4. 5. is the largest part of the respiratory system
  5. 8. part of the digestive system that carries food down to the stomach