Across
- 3. sends/recives messages through neurons
- 7. adds oxygen to the blood in the body
- 9. blood flows through these
- 11. filters and removes excessive waste
- 12. sends and receives messages (inside head)
- 13. peripheral
Down
- 1. a system of glands
- 2. tube that Carry's air
- 4. breaks down food
- 5. pumps blood through body
- 6. a gland in the endocrine system
- 8. allows body to move
- 10. holds organs in place