Across
- 2. these carry blood into the heart
- 7. inside the bone, there is bone ___
- 8. the nervous system manages ___ responses
- 10. this body system protects organs
- 13. the outside layer of skin
- 14. this system is all about breathing
- 15. these carry blood away from the heart
- 16. this system is all about food
- 17. the brain is part of this system
Down
- 1. the digestive system has a large and small ___
- 3. this is how many types of muscle there are
- 4. food enters the ___ first
- 5. the circulatory system has red and white ___ cells
- 6. the muscular system allows ___
- 9. these gather information and interpret it
- 10. this body system controls temperature
- 11. this system moves blood
- 12. where two bones meet is the ____