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Pre-Test
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1
A disease that destroys myelin in the spinal cord will directly affect which of the following cells?
A)astrocytes
B)Schwann cells
C)microglia
D)oligodendrocytes
2
All of the following are functions of neuroglia except
A)phagocytosis
B)providing physical support for neurons
C)sending electrical impulses to transmit information
D)supplying nutrients to neurons
3
The division of the nervous system that connects body parts with the central nervous system is the
A)autonomic nervous system
B)peripheral nervous system
C)somatic nervous system
D)special sense system
4
The integrative function of the nervous system is directly involved in
A)monitoring oxygen levels in the blood
B)making conscious decisions
C)contracting muscles in the leg
D)touching an object
5
Neurons have a special area where a nerve impulse begins called the
A)soma
B)ganglia
C)trigger zone
D)axon
6
All of the following are structural classifications of neurons except
A)interneurons
B)unipolar neurons
C)multipolar neurons
D)bipolar neurons
7
Choose the true statement about the sodium-potassium pump.
A)It moves sodium into the cell and potassium out of the cell.
B)It produces action potentials.
C)It drives the diffusion that produces the resting membrane potential.
D)It pumps sodium and potassium into the cell.
8
Which of these characteristics is true regarding the strength of an action potential?
A)all-or-none response
B)dependent upon the intensity of the stimulus
C)increased as the intensity of the stimulus increases
D)dependent on the type and amount of neurotransmitter involved
9
Transmission of impulses across a synapse is made possible by
A)facilitated transport
B)saltatory conduction
C)neurotransmitters
D)an ATP dependent pump
10
Which of the following neurotransmitters is usually excitatory?
A)dopamine
B)GABA
C)glycine
D)acetylcholine





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