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