Across
- 1. automatic nervous system; regulates involuntary processes
- 6. these nerves travel from brain towards muscles, telling them how to respond (motor)
- 9. _______ Nervous System: brain and spinal cord
- 10. branching fiber of a neuron
- 12. voluntary nervous system; relays commands from brain to muscles
- 14. 10th cranial nerve that controls processes in the chest and abdomen
- 15. space between neurons where impulses jump from one neuron to the next
Down
- 2. a sheath that insulates the axon and speeds electrical impulses
- 3. structure behind the cerebrum that coordinates voluntary movements and balance
- 4. individual nerve cell
- 5. these nerves carry messages about environment toward brain (sensory)
- 7. chemical substance that brings an impulse to the synapse
- 8. largest part of the brain
- 11. loss of myelin that insulates nerve fibers (characteristic of MS)
- 13. stromal (supporting/connective) tissue of the nervous system