system and system parts!

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Across
  1. 1. this part is in the nervous system and its the part that helps you think
  2. 4. a organ, it helps process bile
  3. 7. the center piece in the respiratory system
  4. 8. what you use to breath
  5. 9. when you get a cut usually this will flow out
  6. 10. the place that holds all your organs, ect
  7. 13. the system that helps you breath
  8. 15. what you breath in
Down
  1. 2. this system controls your physical feelings
  2. 3. A system that includes your blood
  3. 5. surrounds the blood vessle
  4. 6. this part sends messages to the brain
  5. 11. what you breath out
  6. 12. moves air in and out of the lungs also known as the windpipe
  7. 14. what you use to eat