Human Systems
Across
- 2. Muscles only ____
- 9. Air we breathe in travels to our ______
- 11. A system that lets us break down food and absorb its nutrients
- 12. Part of the digestive system, and produces acid to break down food
- 13. A system that allows us to move
- 14. Blood travels around in blood _______
- 15. A 'gate' that separates the windpipe and esophagus
- 16. Our _____ System
- 17. The thing that connects muscles to bones
- 18. The bits on bones that allow us to move
- 20. An organ in our head that controls our body
Down
- 1. This organ that is also a muscle
- 3. An organ that absorbs liquid
- 4. Our muscular system is mainly made out of these
- 5. Bones that protect the vital organs in our body
- 6. The thing that connects bones together
- 7. A system that the body needs for us to breathe
- 8. We eat ____ to get energy
- 10. A bone that protects our brain
- 17. A muscle in our mouth that moves the food around
- 19. The thing we breathe in
- 20. The main components of our skeletal system