Human body systems

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Across
  1. 1. Short loop from heart to lungs and back
  2. 3. Solid outside part of the bone
  3. 6. system The system that goes throughout the whole body
  4. 7. Inside the compact bone
  5. 8. The act of breathing in air
  6. 10. cord Contains nerves that branch out into every organ
  7. 11. Muscles we can’t control
  8. 13. Muscles attached by tendons to the bone
  9. 15. Soft tissue that contains protein
  10. 16. make new bone and help repair
  11. 18. Where the two openings meet
Down
  1. 2. Break down bone
  2. 4. Controls what you think and feel
  3. 5. Carry blood away from the heart
  4. 9. system The system that contains the brain and spinal cord
  5. 12. Carry blood away and towards the heart
  6. 14. Blowing out carbon dioxide
  7. 17. Allows us to breath