Across
- 3. Nervous system that includes the brain and spine
- 4. The main organ of the circulatory system
- 6. How blood flows through the body
- 7. Protects our organs and allows us to write, walk, and dance
- 8. The arm muscle you see when you flex
- 11. Brain sends and receives information about the body
Down
- 1. The bone that protects our brain
- 2. Allows our body to get energy from food we eat
- 5. Responsible for our breathing
- 9. Protects our body against infection and sickness
- 10. The main organ of the respiratory system