Across
- 5. Regulates resting and nutrition-related functions such as digestion, defecation, and urination
- 10. Collections of neuron cell bodies that are found outside the CNS
- 12. Bathes brain and spinal cord tissue and provides a protective cushion around the CNS
- 15. Composed of the brain and spinal cord
- 19. The ability to undergo an action potential in response to a stimulus
- 20. Controls the voluntary skeletal muscles
- 21. A stimulus strong enough to create one action potential in a neuron
- 22. The time when no action potential can be generated on the neuron because one is already in progress
Down
- 1. Carries signals to the synapse (the only place a neuron can communicate with another cell
- 2. Muscles and glands under __________________ control work without a conscious effort on our part
- 3. Nerves and ganglia and all parts that aren't CNS
- 4. Transmit action potentials from CNS to the effector organs
- 6. Part of the peripheral nervous system that originate from the spinal cord
- 7. Conducts action potentials from one neuron to another neuron within the CNS
- 8. Engage in phagocytosis to fight infections
- 9. Neurotransmitter binds to receptors that open K+channels
- 11. Bundles of neuron axons and their coverings
- 13. Will not produce an action potential
- 14. Nerves that originate from the brain
- 16. Transmitaction potentials from the sensory organs to the CNS
- 17. Increases the rate and strength of your heartbeat and raises your blood pressure
- 18. A measure of the charge difference across the cell membrane