Emma Nolans' Blood & Guts Crosword

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Across
  1. 2. The colour of nonoxygenated blood
  2. 4. A group of organs
  3. 7. A system that contains a lot of blood
  4. 10. A system that has a lot to do with food
  5. 12. An organ that controls your body
  6. 14. The stuff you breathe in
  7. 16. A pipe which air travels through
  8. 17. The things you see through
Down
  1. 1. A pipe that food passes through
  2. 3. The colour of oxygenated blood
  3. 5. The stuff you breathe out
  4. 6. A sport that you do in water
  5. 8. A system that contains the lungs
  6. 9. A sport that contains a ball
  7. 11. A system that gives support and structure to the body
  8. 12. A red liquid that is pumped around the body by the heart
  9. 13. A sport that contains a bow
  10. 15. One of the things you can breathe through