Across
- 2. breathes in and out
- 4. hold our weight
- 6. carries blood back to the heart
- 7. controls the body
- 9. have horizontal fibers in a microscope
- 10. Made up of the central and peripheral
- 12. the nerves
- 14. the main part of the circulatory system
- 18. brain and spinal
- 20. pull joints allowing for us to move
- 21. found in the heart
- 22. carries blood away from heart
- 23. chest cavity
- 24. the voice box
Down
- 1. carries oxygen to the cells
- 3. The messager in the body
- 5. has nerves branching out and is 18 inches long
- 8. controlled by nervous system
- 11. help hold the skeleton together
- 13. protects the lungs and heart
- 15. protects brain and forms our head shape
- 16. where the air enters
- 17. carries oxygen nutrients and hormones
- 19. Moves air through our body
- 21. what protein is in bones