Body Systems Crossword Puzzle

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Across
  1. 5. state of steady internal conditions in your body
  2. 8. nerve cells
  3. 11. blood vessel that carries blood to the heart
  4. 13. organs involved in producing offspring
  5. 14. used in the nervous system
  6. 17. heart, blood vessels
  7. 19. removes waste
Down
  1. 1. breaks down food
  2. 2. muscle cells and tissues
  3. 3. used in the circulatory system
  4. 4. chemical substances
  5. 6. hormones
  6. 7. bones
  7. 9. breathing
  8. 10. used in the nervous system
  9. 12. used in the respiratory system
  10. 15. minute thin-walled vessel of the body
  11. 16. used in the nervous system
  12. 18. used in the digestive system