Nervous Coordination

3. Type of neuron that conducts signals from receptors to the central nervous system
5. Certain level of membrane potential to be surpassed
6. Neurotransmitter that transmits signals to skeletal muscles
7. "Downtime" after an action potential when a second action potential cannot be initiated
8. Neuronal process that transmits the action potential
9. Sodium channels close and potassium channels open causing this
12. Lipid that insulates the axon
14. Another word for the cell body of a neuron
16. Constant voltage across neuron membranes
17. Sodium ions flood in across the membrane causing this
18. Protein that helps re-establish the resting potential

1. Electrical signal that travels along the axon
2. Chemical that moves across a synapse
4. Neuronal processes arising from the nerve cell body that receive input
10. Muscles or glands can be these
11. Junction between a neuron and its target cell for transmission of information
13. The membrane potential has briefly fallen below -70mV
15. Type of cell that makes up the myelin sheath