How does our body work?

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Across
  1. 3. Carries messages from brain to body
  2. 5. Helps us breathe
  3. 8. Controls all body activities
  4. 9. We use it to think
Down
  1. 1. Helps in movement (attached to bones)
  2. 2. Pumps blood throughout the body
  3. 4. Hard structure that supports body
  4. 6. Red liquid that flows in body
  5. 7. Breaks down food in the body