Human Body Systems

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Across
  1. 4. a system that provides structure and support
  2. 7. a group of tissues make
  3. 8. what your blood is in
  4. 10. the largest organ
  5. 12. a system that works the oxygen in your body
  6. 16. a system that works blood
  7. 17. the bones that protect your your lungs
  8. 18. a thing or event that causes reaction
  9. 19. the system that provides movement to the body
  10. 20. the most important organ of the nerves system
  11. 21. main organ of the circulatory system
Down
  1. 1. a group of cells make
  2. 2. the largest bone
  3. 3. a change in the position of a object
  4. 5. the system that removes waste
  5. 6. the system that breaks down food
  6. 9. a push or pull the changes the position of some thing
  7. 11. part of the nervous system used to smell
  8. 12. a system that produces offspring
  9. 13. balanced;unchanging
  10. 14. part of the respiratory system
  11. 15. protects your organs