Across
- 1. brief electrical charge that travels down an axon
- 2. layer of tissue that covers the axon and speeds up neural impulses
- 4. a period of inactivity after a neuron has fired
- 5. receives information and transfers it to the cell body
- 8. bundled axons that form neural "cables" connecting the central nervous system
- 9. neurons that carry outgoing information from the brain and spinal cord
- 10. our body's nerves that make up the nervous system
- 11. the neuron's support center
Down
- 1. passes messages to its terminal branches
- 3. division of peripheral nervous system that controls the body's skeletal muscles
- 5. a complex molecule containing genetic code
- 6. neurons response to an impulse with either full strength or no strength
- 7. the complete instructions for making an organism