Organ Systems

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Across
  1. 5. flow of blood, in, to, and from the heart
  2. 6. sending/receiving messages to the brain and body
  3. 8. bringing in oxygen
  4. 10. keeping your body healthy
  5. 12. covers your body and helps to protect it
Down
  1. 1. collect excess fluids and returns them to the body
  2. 2. helps you to move
  3. 3. makes, stores, and eliminates urine
  4. 4. dealing with any system that excretes waster
  5. 7. to break down food
  6. 9. helps support/protect your body
  7. 11. controls body functions using chemicals