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Multiple Choice Quiz
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Please answer all questions

1
The central nervous system is comprised of the brain and _____.
A)cranial nerves
B)spinal cord
C)peripheral nerves
D)spinal nerves
2
The______of a neuron carries the impulse towards the nucleus.
A)cell body
B)myelin
C)axon
D)dendrite
3
Which part of a neuron is directly involved with protein synthesis?
A)cell body
B)neurofibrils
C)Nissl body
D)neurolemma
4
Which part of a neuron comes in close proximity to another neuron at the synapse?
A)synaptic knob
B)dendrite
C)axon
D)collateral fiber
5
The phagocytic cells in the CNS are the ______.
A)astrocytes
B)microglia
C)oligodendrocytes
D)ependymal cells
6
The _____cells provide a means of acquiring nutrients in the brain.
A)astrocyte
B)microglia
C)ependymal
D)oligodendrocyte
7
The resting potential of a neuron is _____mv.
A)+30
B)-70
C)0
D)-90
8
The minimal stimulus needed to cause a neuron to transmit an impulse is called the _____.
A)action potential
B)resting potential
C)threshold
D)refractory period
9
Saltatory conduction occurs when an impulse jumps from _____.
A)axon to dendrite
B)node to node
C)dendrite to axon
D)node of Ranvier to axon
10
The most common neurotransmitter in the body is _____.
A)norepinephrine
B)adrenalin
C)acetylcholine
D)dopamine
11
Acetylcholine is decomposed by _____almost as fast as it is released.
A)monoamine oxidase
B)MAO inhibitors
C)norepinephrine
D)acetylcholinesterase
12
The following belong together except which one?
A)norepinephrine
B)acetylcholine
C)epinephrine
D)adrenalin
13
A morphine-like pain suppressing brain substance is _____.
A)substance P
B)beta-endorphin
C)nicotine
D)neuropeptide
14
A change in a dendrite which lessens the probability of a conduction is the _____.
A)EPSP
B)IPSP
C)threshold potential
D)action potential
15
A drug, which prevents overstimulation by the PNS neurons, is _____.
A)curare
B)caffeine
C)amphetamine
D)tricyclic anti-depressant
16
Which of the following does not belong with the rest?
A)summation
B)facilitation
C)divergence
D)convergence
17
Which type of short neuron is found in the retina?
A)bipolar
B)unipolar
C)multipolar
D)sensory
18
The following belong together except which one?
A)multipolar
B)motor
C)sensory
D)efferent
19
The following belong together except which one?
A)interneuron
B)intercalated neuron
C)association neuron
D)sensory neuron
20
The nucleus of a sensory neuron can be found within the _____.
A)CNS
B)ganglia
C)myelin sheath
D)spinal cord
21
Gross nerves that contain sensory impulses are referred to as _____.
A)afferent
B)roots
C)mixed
D)efferent
22
The PNS is comprised of cranial nerves and _____.
A)spinal cord
B)sensory nerves
C)the brain
D)spinal nerves
23
Collaterals are fibers arising from the ____of neurons.
A)dendrite
B)axon
C)soma
D)synapse
24
Nerves that carry impulses from the heart to the brain could be classed as _____fibers.
A)somatic efferent
B)visceral efferent
C)somatic afferent
D)visceral afferent
25
The cells that produce myelin in the PNS are the ______.
A)oligodendrocytes
B)axons
C)Schwann cells
D)ependymal
26
The following could be grouped together except which one?
A)association
B)motor
C)internuncial
D)interneuron
27
The ______cells play a role in the establishment of a blood-brain chemical barrier.
A)microglia
B)neuron
C)astrocyte
D)ependymal







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