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1. Which of the following is not a basic function of the nervous system? A. Collect information B. Process and evaluate information C. Produce hormones D. Initiate a response to information
Produce hormones
3. Which cell type forms the myelin sheath in the CNS? A. Schwann cells B. Astrocytes C. Microglia D. Oligodendrocytes
Oligodendrocytes
4. What structure contains Nissl bodies? A. Axon terminals B. Schwann cell C. Cell body D. Myelin sheath
Cell body
5. The axon hillock is also known as the: A. Trigger zone B. Receptive zone C. Transmissive zone D. Recovery zone
Trigger zone
6. Which direction does anterograde axonal transport move? A. Toward the cell body B. Toward synaptic end bulbs C. To the nucleus D. To the dendrites only
Toward synaptic end bulbs
7. Bipolar neurons contain: A. One process B. Several dendrites and one axon C. One dendrite and one axon D. No dendrites
One dendrite and one axon
8. Which type of neuron carries information to the CNS? A. Motor (efferent) B. Sensory (afferent) C. Interneurons D. Pyramidal neurons
Sensory (afferent)
9. Which structure wraps individual axons within a nerve? A. Epineurium B. Perineurium C. Endoneurium D. Myoneurium
Endoneurium
10. Which neuroglial cell forms the blood-brain barrier? A. Microglia B. Astrocytes C. Ependymal cells D. Schwann cells
Astrocytes
11. Which neuroglial cell is phagocytic? A. Astrocyte B. Satellite cell C. Microglia D. Ependymal cell
Microglia
12. Schwann cells form: A. Myelin sheath in CNS B. Myelin sheath in PNS C. Blood-brain barrier D. Cerebrospinal fluid
Myelin sheath in PNS
13. Which structure allows possible regeneration in the PNS? A. Astrocyte processes B. Neurilemma C. Nodes of Ranvier D. Ependymal cell lining
Neurilemma
14. Gray matter contains mostly: A. Myelinated axons B. Unmyelinated axons and cell bodies C. Only dendrites D. Only neuroglia
Unmyelinated axons and cell bodies
15. Which ion movement primarily causes depolarization during an AP? A. K+ out B. Cl– in C. Na+ in D. Ca++ out
Na+ in
16. What restores the resting membrane potential after hyperpolarization? A. Voltage-gated Ca++ channels B. Na+/K+ pump C. Ligand-gated channels D. Passive diffusion of Cl–
Na+/K+ pump
17. Graded potentials occur mainly on: A. Axon terminals B. Nodes of Ranvier C. Dendrites and cell body D. Myelin sheath
Dendrites and cell body
