Download AnatomyTestNervousSystem1

Anatomy Test
Nervous System
Name:
1. What is the name of the small space between two neurons?
2. A polarized neuron has a positive charge that is located in the (ICF, ECF) region.
3. After a neuron depolarizes, it must undergo ______________ to return the neuron to
its polarized state.
4. What are the three major parts of a neuron?
5. Name a neurotransmitter and the enzyme that breaks down that neurotransmitter.
6. What is the ion that is involved in causing the presynaptic vessel to release the
neurotransmitter?
7. The process where by the positive ions are entering the neuron is called ___________.
8. What initially causes the positive ions to begin entering the neuron?
9. Upon release, neurotransmitters will stimulate what portion of the next neuron?
10. An impulse cannot get across the synapse from the dendrite end because dendrites do
not release _________________.
11. The myelin sheath that is formed around axons of some neurons are made up by cells
called ________________.
12. Nerves are actually bundles of __________________.
13. Protecting the Nervous System is the function of what type of neural cells?
14. The minimum amount of stimulus required to create depolarization is called
______________.
15. What is the principle that states once depolarization occurs, an impulse will travel to
its destination?
16. Novocain creates “numbness” in the nerves by preventing the positive ions from
entering the neuron. Therefore, Novocain inhibits the action called ________________.
17. The process of reestablishing the sodium ions in the ECF region of the neuron is
called ___________________.