Across
- 5. singular extension from the cell body carries messages away
- 6. gray outer cortex of the brain
- 7. area where no myelin is present
- 10. outer brain covering
- 11. insulates supports protects neurons
- 14. the space between synapses
- 15. liquid made in the ventricles
- 19. many extensions from the cell body carries a message to
- 20. covers and protects the axon speeds nerve impulses
- 21. network of blood vessels in the Pia Mater
- 22. where messages go from one cell to the next
Down
- 1. three membranes covering the brain
- 2. this keeps drugs in the bloodstream out of the brain
- 3. chemical substances transmitting messages across synapse
- 4. lined cavity filled with CSF
- 8. shallow grooves in the brain
- 9. middle layer
- 12. elevated ridges between the sulci
- 13. largest part of the brain
- 16. covers the brain surface
- 17. nerve cells
- 18. deep grooves in the brain