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Anat/Phys Nervous System #1
Test Description: Anatomy and Physiology Explorations
Instructions: Answer all questions to get your test result.
1) The central nervous system consists of
A
the brain, spinal cord, and cranial nerves.
B
the brain and cranial nerves.
C
the brain and spinal cord.
D
only the brain.
2) Which of the following glia cells form myelin sheaths in the CNS?
A
astrocytes
B
ependymal cells
C
oligodendricytes
D
microglia
3) The functional units of the nervous system are the
A
neurotransmitters.
B
neurons.
C
Schwann cells.
D
nerves.
4) What transmits nerve impulses away from the nerve cell body?
A
axons
B
satellite cells
C
microglia
D
dendrites
5) Divisions of the peripheral nervous system are
A
sensory, somatic, autonomic, commissural
B
sensory, somatic, autonomic
C
sensory, commissural, sympathetic, parasympathetic
D
somatic, basal nuclei, autonomic
6) Cells that form the myelin sheaths around peripheral neurons are
A
astrocytes.
B
satellite cells.
C
microglia.
D
Schwann cells.
7) White matter of the central nervous system consists of
A
neuron cell bodies and unmyelinated fibers.
B
myelinated fibers.
C
basal nuclei.
D
ganglia.
8) Neurons that carry impulses away from the CNS are called
A
afferent neurons.
B
associative neurons.
C
interneurons.
D
efferent neurons.
9) All are structural classifications of neurons EXCEPT
A
unipolar.
B
multipolar.
C
tripolar.
D
bipolar.
10) During depolarization of a neuron
A
chloride diffuses out of the cell.
B
sodium diffuses out of the cell.
C
potassium diffuses into the cell.
D
sodium diffuses into the cell.
*select an answer for all questions
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