Across
- 4. pumps blood
- 6. system responsible for movement
- 7. control center of the body
- 9. hard tissue to help move and protect
- 12. smallest unit of life
- 13. blood vessels that carry blood away from the heart
- 14. over 600 of these in our body
- 17. blood vessels that carry blood back to the heart
- 18. gas that enters the body and is sent to cells
Down
- 1. four sections of the heart
- 2. part of the brain responsible for emotions
- 3. system responsible for carrying materials through the blood
- 5. wasteful gas that exits the body
- 8. part of the brain responsible for memory
- 10. bundle of fibers that sends messages through the body
- 11. system responsible for sending messages from the brain and sensing pain
- 15. largest organ in your body
- 16. organ that helps sort out the nutrients we eat