Across
- 2. Interbrain that sits atop the brain stem and is enclosed by the cerebral hemispheres
- 3. Three consecutive tissue membranes covering and protecting the CNS structures
- 6. A collection of nerve fibers in the CNS having the same origin, termination, and function
- 11. The portion of the brain consisting of the medulla, pons, and midbrain
- 13. A self-propagating wave of depolarization; also called action potential
- 16. The most inferior part of the brain stem
- 17. Cells of the nervous system specialized to transmit messages throughout the body
- 19. Part of the hind-brain; involved in producing smoothly coordinated skeletal muscle activity
Down
- 1. A watery "broth" with components similar to blood plasma
- 2. The branching extensions of neurons that carry electrical signals to the cell body; the receptive portion of a nerve cell
- 4. A double-layered membrane that surrounds the brain
- 5. The largest part of the brain; consists of right and left cerebral hemispheres
- 7. Weblike middle meningeal layer
- 8. Islands of gray matter buried deep within the white matter of the cerebral hemispheres
- 9. Specialized projections of the arachnoid membrane
- 10. Rounded structure that protrudes just below the midbrain
- 12. Part of the brain stem containing reflex centers for vision and hearing, and fiber tracts (Cerebral peduncles) that convey both ascending and descending impulses
- 14. Extends the entire length of the brain stem as a diffuse mass of gray matter
- 15. Enlarged Chambers
- 18. Automatic reaction to stimulus