PSY 251 Old Exam Questions
The author's meaning of "consciousness" is consistent with our - correct answer ability
to communicate our thoughts and feelings to others
Which of the following functions is associated with the right hemisphere? - correct
answer the control of muscles on the left side of the body
Transection of the _______ may be useful for reducing the symptoms of ________. -
correct answer corpus callosum; epilepsy
Based on his observation of brain damage and behavioral difficulties in a stroke victim,
Paul Broca concluded that - correct answer the control of speech is a function of the left
hemisphere
Dr. Leary argues that muscle contraction occurs because muscle fibers undergo a
physical process of shortening. His explanation would invoke the process of - correct
answer reduction
The significance of Galvani's experiment involving stimulation of an isolated frog muscle
is - correct answer the muscles are activated by electrical nerve signals
The doctrine of specific nerve energies was proposed by - correct answer Johannes
Müller
__________ neurons gather information from the environment related to light, odors,
and bodily contact with objects - correct answer sensory
the membranes that commonly form synapses are the ______ and the ______ - correct
answer axon terminals; dendrites
The portion of a neuron that carries a signal toward the cell body is the - correct answer
dendrite
Activation of cells within the area postrema would be predicted to produce - correct
answer feelings of nausea and vomiting
The ______ neuron is the most common nerve cell type in the central nervous system -
correct answer multipolar
Which of the following glial cells are important for the supply of energy for neurons -
correct answer astrocytes
Which of the following is true of Schwann cells - correct answer A single Schwann cell
wraps a single segment of a peripheral nerve cell
The interior of a neuron at rest - correct answer is negatively charged relative to the
outside
, PSY 251 Old Exam Questions
The physical gap between two neurons across which messages are transmitted is the -
correct answer synaptic cleft
_______ are positively charged particles - correct answer cations
The ________ are important for the process of myelination of axons in the brain -
correct answer oligodendrocytes
The process by which similarly charged particles repel each other and are thus
distributed throughout a medium is termed - correct answer electrostatic pressure
The membrane voltage level at which an action potential is triggered is termed the -
correct answer threshold of excitation
Saltatory conduction is rapid because - correct answer the action potential does not
have to depolarize every segment of the axon membrane
Subthreshold depolarizations of the axon membrane - correct answer decrease in
amplitude as they sweep along the membrane
Ions enter and leave the membrane of a myelinated axon at the - correct answer nodes
of Ranvier
An autoreceptor is located on the _____ and is sensitive to ________. - correct answer
presynaptic membrane; the transmitter released by that neuron
Which of the following ion channels will produce an EPSP? - correct answer opening a
sodium channel
The process which terminates the postsynaptic potentials induced by most
neurotransmitters is - correct answer reuptake of the molecule into the axon terminal
Resistance is - correct answer the force opposing the flow of electrical current
Match up the correct pairing of a receptor type with its action - correct answer
ionotropic; direct opening of an ion channel
Myelin increases conduction velocity by - correct answer increasing the membrane
resistance
The membrane of a nerve cell is comprised of - correct answer a double layer of lipid
molecules
A drug that blocks a presynaptic autoreceptor - correct answer increases the release of
the neurotransmitter from the axon terminal
The author's meaning of "consciousness" is consistent with our - correct answer ability
to communicate our thoughts and feelings to others
Which of the following functions is associated with the right hemisphere? - correct
answer the control of muscles on the left side of the body
Transection of the _______ may be useful for reducing the symptoms of ________. -
correct answer corpus callosum; epilepsy
Based on his observation of brain damage and behavioral difficulties in a stroke victim,
Paul Broca concluded that - correct answer the control of speech is a function of the left
hemisphere
Dr. Leary argues that muscle contraction occurs because muscle fibers undergo a
physical process of shortening. His explanation would invoke the process of - correct
answer reduction
The significance of Galvani's experiment involving stimulation of an isolated frog muscle
is - correct answer the muscles are activated by electrical nerve signals
The doctrine of specific nerve energies was proposed by - correct answer Johannes
Müller
__________ neurons gather information from the environment related to light, odors,
and bodily contact with objects - correct answer sensory
the membranes that commonly form synapses are the ______ and the ______ - correct
answer axon terminals; dendrites
The portion of a neuron that carries a signal toward the cell body is the - correct answer
dendrite
Activation of cells within the area postrema would be predicted to produce - correct
answer feelings of nausea and vomiting
The ______ neuron is the most common nerve cell type in the central nervous system -
correct answer multipolar
Which of the following glial cells are important for the supply of energy for neurons -
correct answer astrocytes
Which of the following is true of Schwann cells - correct answer A single Schwann cell
wraps a single segment of a peripheral nerve cell
The interior of a neuron at rest - correct answer is negatively charged relative to the
outside
, PSY 251 Old Exam Questions
The physical gap between two neurons across which messages are transmitted is the -
correct answer synaptic cleft
_______ are positively charged particles - correct answer cations
The ________ are important for the process of myelination of axons in the brain -
correct answer oligodendrocytes
The process by which similarly charged particles repel each other and are thus
distributed throughout a medium is termed - correct answer electrostatic pressure
The membrane voltage level at which an action potential is triggered is termed the -
correct answer threshold of excitation
Saltatory conduction is rapid because - correct answer the action potential does not
have to depolarize every segment of the axon membrane
Subthreshold depolarizations of the axon membrane - correct answer decrease in
amplitude as they sweep along the membrane
Ions enter and leave the membrane of a myelinated axon at the - correct answer nodes
of Ranvier
An autoreceptor is located on the _____ and is sensitive to ________. - correct answer
presynaptic membrane; the transmitter released by that neuron
Which of the following ion channels will produce an EPSP? - correct answer opening a
sodium channel
The process which terminates the postsynaptic potentials induced by most
neurotransmitters is - correct answer reuptake of the molecule into the axon terminal
Resistance is - correct answer the force opposing the flow of electrical current
Match up the correct pairing of a receptor type with its action - correct answer
ionotropic; direct opening of an ion channel
Myelin increases conduction velocity by - correct answer increasing the membrane
resistance
The membrane of a nerve cell is comprised of - correct answer a double layer of lipid
molecules
A drug that blocks a presynaptic autoreceptor - correct answer increases the release of
the neurotransmitter from the axon terminal
