Human Body System Review

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Across
  1. 3. carry oxygen and nutrients in your body
  2. 7. main organ of the respiratory system
  3. 9. system that gives your body structure
  4. 11. contract and relax
  5. 12. organ that absorbs water
  6. 13. system that pumps blood through your body
Down
  1. 1. system that work with the skeletal system
  2. 2. connect your bones to muscles
  3. 4. the main organ of the nervous system
  4. 5. system that breaks down your food
  5. 6. connect your bones to bones
  6. 8. system that controls your body
  7. 10. the system that exchanges oxygen for CO2