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