The Nervous System
Across
- 1. Largest part of the brain
- 10. Connective and supporting tissue of an organ
- 12. Neurotransmitter chemical released at the ends of a nerve cell
- 13. Networks of intersecting blood and lymphatic vessels
- 14. Motor nerve that carries messages away from the brain
- 15. Depression or groove in the surface of the cerebral cortex
Down
- 2. Three protective membranes that surround the brain and spinal cord
- 3. Type of glial cell that transports water and salt
- 4. Microscopic branching fiber of a nerve cell
- 5. Sensory nerve that carries messages toward the brain
- 6. Canals in the brain that contain cerebrospinal fluid
- 7. Space through which a nervous impulse travels between nerve cells
- 8. Individual nerve cell
- 9. Fatty tissue covering axons
- 11. Essential distinguishing tissue of an organ