Human Body Systems Crossword

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Across
  1. 7. a nerve cell
  2. 8. filters blood
  3. 9. intestine absorbs most of the nutrients in the digestive process
  4. 10. crushes up food using acid
  5. 14. pumps blood to all of the cells
  6. 15. this system takes in oxygen and lets out carbon dioxide
  7. 17. a muscle attached to a bone
  8. 19. carries materials to cells
  9. 20. an organ that controls the body systems
Down
  1. 1. this system sends materials to cells
  2. 2. sacs that take oxygen and convert it into carbon dioxide
  3. 3. helps the body to move
  4. 4. this system breaks down food to create nutrients
  5. 5. connects two bones together
  6. 6. this system controls most of the body systems
  7. 11. the muscle the heart is made out of
  8. 12. an organ that helps support the body
  9. 13. keeps bones from rubbing together
  10. 16. this system helps support and protect the body
  11. 18. otherwise known as the windpipe helps get oxygen in and carbon dioxide out