Bio 2050 - Anatomy and Physiology » Fall 2022 » Nervous system quiz
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Question #1
A neuron conducting an impulse from the CNS to the detrusor muscle of the urinary bladder would be classified as a(n) __________ neuron.
A.
somatic sensory
B.
somatic motor
C.
visceral sensory
D.
autonomic motor
Question #2
The glial cell that defends the body against pathogens is the
A.
oligodendrocyte.
B.
neurolemmocyte.
C.
microglial cell.
D.
ependymal cell.
E.
astrocyte.
Question #3
A depolarization is when the inside of a neuron becomes _______________ the resting membrane potential.
A.
less negative than
B.
closer to
C.
more negative than
Question #4
Saltatory conduction of a nerve impulse occurs only along myelinated axons.
A.
True
B.
False
Question #5
A neuron's membrane contains more potassium leak channels than sodium leak channels.
A.
True
B.
False
Question #6
To measure the resting potential of a neuron, a physiologist would place
A.
two electrodes inside the neuron.
B.
one microelectrode inside the neuron and another in the interstitial fluid.
C.
one electrode inside the cell and another outside the body.
D.
one electrode inside the cell and another inside another cell.
Question #7
Which statement is true regarding the action of an oligodendrocyte?
A.
Each oligodendrocyte can form a myelin sheath around many axons simultaneously.
B.
Each oligodendrocyte can wrap only a 1-mm portion of a single axon.
C.
A neurolemmocyte attacks pathogens.
D.
Oligodendrocytes function only within the PNS.
E.
An oligodendrocyte is responsible for forming part of the blood-brain barrier.
Question #8
Glial cells differ from neurons in that they
A.
are found only in the PNS.
B.
are found only in the CNS.
C.
are larger and capable of meiosis.
D.
transmit nerve impulses much more slowly.
E.
are smaller and capable of mitosis.
Question #9
The spinal cord is part of the central nervous system.
A.
True
B.
False
Question #10
The size of an EPSP is independent of the amount of excitatory neurotransmitter that is released by the presynaptic cell.
A.
True
B.
False
Question #11
A tumor can occur in any tissue within the CNS.
A.
True
B.
False
Question #12
The portion of the nervous system that conducts impulses from the skin, joints, skeletal muscles,and special senses is the ___________ division.
A.
somatic motor
B.
somatic sensory
C.
autonomic motor
D.
visceral sensory
Question #13
Acetylcholine is a neurotransmitter frequently used in the autonomic nervous system.
A.
False
B.
True
Question #14
A neuropeptide is a molecule that is synthesized from an amino acid by the removal of a carboxyl group and the addition of another small functional group such as an amine group.
A.
True
B.
False
Question #15
Transmission of nerve impulses along myelinated axons requires more energy than transmission along unmyelinated axons.
A.
False
B.
True
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