Across
- 2. Largest portion of the brain
- 3. Inability to speak
- 4. Fight or flight nervous system
- 7. Chemical enables neurons to communicate with one another
- 9. Innermost layer of meninges
- 10. Division of PNS, controls involuntary functions
- 11. Outermost layer of meninges
- 14. Regulates thirst, hormones, and body temperature
- 18. Middle layer of meninges
- 19. Protective covering of brain and spinal cord
Down
- 1. Connects two portions of the cerebrum
- 3. Toward CNS
- 5. # of pairs of spinal nerves
- 6. Loss of muscle control
- 8. Nerve pain
- 12. Weakness
- 13. Cells which produce myelin sheath
- 15. Links brain and spinal cord to skeletal muscles
- 16. Fainting
- 17. From CNS