Vincent Voltaire
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Psychology Quiz am Chapter 3 - part 1: The Anatomy of the Nervous System, erstellt von Vincent Voltaire am 07/02/2020.

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Vincent Voltaire
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Chapter 3 - part 1: The Anatomy of the Nervous System

Frage 1 von 62

1

Which cells in the nervous system do most of the work of receiving, integrating, and transmitting information?

Wähle eine der folgenden:

  • neurons

  • glial cells

  • axons

  • dendrites

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Frage 2 von 62

1

Which of the following is the most accurate description of the structure and function of all neurons in your central nervous system?

Wähle eine der folgenden:

  • All neurons contain a cell body and an axon, and may have other structures.

  • All neurons receive information via one or more dendrites and send information via one or more axons.

  • All neurons synapse onto another neuron in order to transmit an electrical signal.

  • All neurons receive and send information.

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Frage 3 von 62

1

Which of the following is NOT one of the main functions of neurons?

Wähle eine der folgenden:

  • integrating information

  • generating information

  • transmitting information

  • receiving information

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Frage 4 von 62

1

What are three basic components of most neurons?

Wähle eine der folgenden:

  • vesicles, terminal buttons, synapses

  • myelin, nodes, axon terminals

  • cell body, axon, dendrites

  • hindbrain, midbrain, forebrain

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Frage 5 von 62

1

Which neuronal structures are analogous to branches on a tree?

Wähle eine der folgenden:

  • dendrites

  • axons

  • nuclei

  • cell bodies

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Frage 6 von 62

1

On a typical neuron, which structure receives neurochemical information, and which structure sends
neurochemical information to other neurons?

Wähle eine der folgenden:

  • Dendrites receive; axons send.

  • Axons send; synapses receive.

  • Dendrites receive; synapses send.

  • Axons receive; dendrites send.

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Frage 7 von 62

1

In computers, the keyboard is the component of the computer that receives information. What would the
keyboard be equivalent to, in comparing a computer to a neuron?

Wähle eine der folgenden:

  • axon

  • soma

  • dendrite

  • terminal button

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Frage 8 von 62

1

Emma has a disorder that includes degeneration of myelin sheaths in her nervous system. Which of the following disorders does Emma most likely have?

Wähle eine der folgenden:

  • Alzheimer’s disease

  • multiple sclerosis

  • Broca’s aphasia

  • Parkinson’s disease

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Frage 9 von 62

1

Which of the following is associated with the fastest neural impulses?

Wähle eine der folgenden:

  • unmyelinated dendrites

  • myelinated axons

  • shorter axons

  • multiple dendrites

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Frage 10 von 62

1

When you want to print something from a computer, a cable carries this signal from the computer to the printer.
In comparing a computer and printer to two neurons, what is the neuronal equivalent to the cable?

Wähle eine der folgenden:

  • synapse

  • soma

  • terminal button

  • axon

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Frage 11 von 62

1

When you are printing something from your computer, your cable must be securely connected to the printer or
else the signal won’t get through. If you compared a computer and printer to two neurons, what is the neuronal
equivalent of the connection between the cable and the printer?

Wähle eine der folgenden:

  • synapse

  • soma

  • terminal button

  • axon

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Frage 12 von 62

1

Which part of the neuron secretes neurotransmitters?

Wähle eine der folgenden:

  • neuromodulators

  • dendrites

  • myelin sheaths

  • terminal buttons

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Frage 13 von 62

1

Which of the following is the correct sequence of structures through which information flows in a neuron?

Wähle eine der folgenden:

  • dendrites to axon to soma

  • axon to glia to dendrites

  • glia to dendrites to axon

  • dendrites to soma to axon

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Frage 14 von 62

1

What are the cells that provide structural support and insulation for neurons?

Wähle eine der folgenden:

  • synapses

  • sheaths

  • glia

  • soma

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Frage 15 von 62

1

What is the primary role of glial cells?

Wähle eine der folgenden:

  • They form the primary components of the spinal cord.

  • They provide support for neurons.

  • They release neurotransmitters.

  • They release neuromodulators.

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Frage 16 von 62

1

What would happen if you were to lose all of your glial cells?

Wähle eine der folgenden:

  • There would be no change in functioning, because neurons are the cells that are important for transmission of information within the nervous system.

  • One hemisphere could not send information to the other hemisphere.

  • Your neurons would no longer have a normal chemical environment, and there would be problems with efficient neurotransmission.

  • You would no longer be able to send neurotransmitters from one cell to another.

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Frage 17 von 62

1

Which of the following is a characteristic of both sodium and potassium ions?

Wähle eine der folgenden:

  • They carry a negative charge.

  • They are concentrated inside the neuron’s cell body.

  • They carry a positive charge.

  • They are capable of changing their potentials.

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Frage 18 von 62

1

What do we call the tiny electrical charge that exists when a neuron is neither receiving nor sending information?

Wähle eine der folgenden:

  • resting potential

  • action potential

  • post-synaptic potential

  • inhibitory potential

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Frage 19 von 62

1

When a neuron is neither receiving nor sending, what is the approximate voltage of the electrical charge that
exists between the inside and the outside of a neuron?

Wähle eine der folgenden:

  • –700 millivolts

  • –70 millivolts

  • +70 millivolts

  • +700 millivolts

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Frage 20 von 62

1

Bradley is deeply relaxed and many of his muscles are not moving at all. What does this suggest about many of
Bradley’s motor neurons?

Wähle eine der folgenden:

  • They have a voltage of +70 millivolts.

  • They have a voltage of –70 millivolts.

  • They are in a relative refractory period.

  • They are in an absolute refractory period.

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Frage 21 von 62

1

When the sodium channels of a neuron open, allowing sodium ions to flow inside, which of the following is most
likely to happen next?

Wähle eine der folgenden:

  • a resting potential

  • an action potential

  • a refractory period

  • reuptake

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Frage 22 von 62

1

What is an action potential?

Wähle eine der folgenden:

  • an electrical signal that travels along the axon of a neuron

  • the small gap that exists between adjacent neurons

  • the tiny electrical charge that exists when a neuron is neither receiving nor sending information

  • the release of neurotransmitters

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Frage 23 von 62

1

Tracey became dehydrated during a recent illness, and the levels of sodium in her body were significantly
reduced. What would we expect to occur if enough sodium was lost?

Wähle eine der folgenden:

  • Her nervous system would become highly activated, and action potentials would be generated
    continuously.

  • More neurotransmitters would be produced in her terminal buttons.

  • Fewer action potentials would occur in her nervous system.

  • Glial cells would start to degenerate and die.

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Frage 24 von 62

1

A neuron just sent a neural impulse. It will be one to two milliseconds before another neural impulse can be
generated. What do we call this brief time increment, when another neural impulse cannot occur?

Wähle eine der folgenden:

  • resting potential

  • absolute refractory period

  • postsynaptic discharge

  • all-or-none period

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Frage 25 von 62

1

What is the term for the minimum length of time between action potentials?

Wähle eine der folgenden:

  • relative threshold period

  • transduction interval

  • absolute refractory period

  • synaptic interval

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Frage 26 von 62

1

Which of the following is known about action potentials?

Wähle eine der folgenden:

  • They travel more slowly if the incoming stimulation is less intense.

  • They are stronger when the incoming stimulation is more intense.

  • They are generated in an all-or-none fashion.

  • They are seldom strong enough to reach the terminal buttons.

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Frage 27 von 62

1

What is the typical speed of an action potential?

Wähle eine der folgenden:

  • at least 600 kilometres/hour

  • up to 300 kilometres/hour

  • approximately the speed of light (300,000 kilometres/second)

  • approximately the speed of sound (1236 kilometres/hour)

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Frage 28 von 62

1

Sara is holding Scott’s hand during a scary movie. Suddenly she squeezes his hand very hard. When she does
this, what will the nerves in Scott’s hand do?

Wähle eine der folgenden:

  • release more GABA

  • send larger action potentials to his central nervous system

  • enter an absolute refractory period

  • start to fire at a faster rate

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Frage 29 von 62

1

Fiona puts her hands into a bucket of lukewarm water; Luke puts his hands into a bucket of ice-cold water.
What should we predict about each of their action potentials?

Wähle eine der folgenden:

  • Only Fiona will experience enough stimulation to trigger an action potential.

  • Luke will have inhibitory action potentials.

  • Their action potentials will differ in rate, due to differences in the intensity of the stimuli.

  • Their action potentials will differ in size, due to differences in the intensity of the stimuli.

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Frage 30 von 62

1

Peggy smells a very strong odour; Harry smells an odour that is barely detectable. Based on what is known
about neural transmission, what should we predict about each of their action potentials?

Wähle eine der folgenden:

  • They will be the same size but at different rates.

  • Peggy’s will be excitatory, and Harry’s will be inhibitory.

  • They will be weaker in Harry’s system because the stimulus is less intense.

  • They will be distinguished by the amount of inhibition they exert on synapses.

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Frage 31 von 62

1

What do we call the space between a terminal button and a dendrite?

Wähle eine der folgenden:

  • the transmission gap

  • the midsynaptic potential range

  • the synaptic cleft

  • the neuromodulator

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Frage 32 von 62

1

Where are neurotransmitters stored?

Wähle eine der folgenden:

  • in the dendrites

  • in the mitochondria

  • in the axon

  • in the synaptic vesicles

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Frage 33 von 62

1

What do synaptic vesicles do?

Wähle eine der folgenden:

  • They fuse with the postsynaptic cell.

  • They store neurotransmitters.

  • They block receptors.

  • They manufacture myelin.

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Frage 34 von 62

1

What happens when a neurotransmitter is released from a presynaptic neuron, but it does not fit into a suitable
receptor channel on the postsynaptic neuron?

Wähle eine der folgenden:

  • The firing potential of the postsynaptic neuron will not be affected.

  • An inhibitory postsynaptic potential will be generated.

  • A graded potential will be generated.

  • The presynaptic neuron will be inhibited.

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Frage 35 von 62

1

What is a good analogy for the way in which a neurotransmitter binds to receptor sites?

Wähle eine der folgenden:

  • the lowering of a drawbridge

  • a key fitting in a lock

  • the pulling of a gun trigger

  • the opening and closing of a window

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Frage 36 von 62

1

What type of electric potential increases the likelihood that the postsynaptic neuron will fire?

Wähle eine der folgenden:

  • all-or-none potential

  • excitatory postsynaptic potential

  • inhibitory postsynaptic potential

  • a resting potential

Erklärung

Frage 37 von 62

1

The voltage at a receptor site has just changed from –70 millivolts to –75 millivolts. What caused the change?

Wähle eine der folgenden:

  • excitatory postsynaptic potential

  • influx of potassium ions

  • influx of sodium ions

  • inhibitory postsynaptic potential

Erklärung

Frage 38 von 62

1

The voltage at a receptor site has just changed from –70 millivolts to –67 millivolts. What will this lead to?

Wähle eine der folgenden:

  • an absolute refractory period

  • increased likelihood of an action potential

  • decreased likelihood of an action potential

  • a relative refractory period

Erklärung

Frage 39 von 62

1

What do we call the process of absorption of neurotransmitters into the presynaptic neuron?

Wähle eine der folgenden:

  • reuptake

  • neurotransmission

  • graded potential

  • inhibition

Erklärung

Frage 40 von 62

1

Which of the following is the correct sequence of steps through which neurotransmitters progress during synaptic
transmission?

Wähle eine der folgenden:

  • binding, synthesis, release, inactivation, reuptake

  • synthesis, release, binding, inactivation, reuptake

  • synthesis, binding, release, reuptake, inactivation

  • release, synthesis, binding, reuptake, inactivation

Erklärung

Frage 41 von 62

1

If a brain has several synapses that are not particularly active, those synapses may be eliminated. What is this process called?

Wähle eine der folgenden:

  • synaptic pruning

  • inhibition

  • natural selection

  • long-term potentiation

Erklärung

Frage 42 von 62

1

At what age do humans tend to have the largest number of synapses?

Wähle eine der folgenden:

  • at birth

  • at 1 year

  • at puberty

  • after physical growth has ended in early adulthood

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Frage 43 von 62

1

According to the Hebbian Learning Rule, if an axon of Cell A is near enough to repeatedly stimulate Cell B (causing it to fire often), then what will happen to Cell B?

Wähle eine der folgenden:

  • Cell B will eventually stop responding to Cell A.

  • Cell B will merge with Cell A.

  • Cell B will be pruned because it is redundant with Cell A.

  • Cell B will become more likely to fire in response to signals from Cell A.

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Frage 44 von 62

1

Which of the following neurotransmitters is primarily involved in the activation of motor neurons controlling skeletal muscles?

Wähle eine der folgenden:

  • GABA

  • acetylcholine

  • serotonin

  • norepinephrine

Erklärung

Frage 45 von 62

1

Jeremy is sitting quietly when the voluntary muscles in his left leg begin to twitch. Which neurotransmitter is likely being released?

Wähle eine der folgenden:

  • serotonin

  • norepinephrine

  • acetylcholine

  • GABA

Erklärung

Frage 46 von 62

1

When your text states that nicotine functions as an acetylcholine agonist, what does that mean?

Wähle eine der folgenden:

  • It interacts with acetylcholine to produce a novel effect.

  • It occupies acetylcholine receptor sites, thus blocking the action of the neurotransmitter.

  • It stimulates some acetylcholine synapses.

  • It inhibits some acetylcholine release.

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Frage 47 von 62

1

What does an agonist do?

Wähle eine der folgenden:

  • It extends the absolute refractory period of neural transmission.

  • It blocks the action of neurotransmitters.

  • It mimics the action of a neurotransmitter.

  • It prevents reuptake of neurotransmitters.

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Frage 48 von 62

1

Curare blocks the action of acetylcholine by occupying its receptor sites. In this context, what is curare?

Wähle eine der folgenden:

  • a neurotransmitter

  • an agonist

  • a neuromodulator

  • an antagonist

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Frage 49 von 62

1

Dr. Jacoby has just discovered a new drug named Z2W that is an antagonist to acetylcholine. What are some likely side effects of this new drug?

Wähle eine der folgenden:

  • hallucinations and disrupted sleep patterns

  • general stimulation within the body and an increase in heart rate

  • sleepiness and loss of interest in activities

  • motor and memory problems

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Frage 50 von 62

1

Dr. Ferracane has just discovered a new drug named GL8 that produces side effects such as paralysis and memory loss. Based on this information, how might this drug act on the nervous system?

Wähle eine der folgenden:

  • as an agonist for GABA

  • as an antagonist for GABA

  • as an antagonist for acetylcholine

  • as an agonist for acetylcholine

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Frage 51 von 62

1

What seems to be a primary cause of Parkinson’s disease?

Wähle eine der folgenden:

  • degeneration of neurons that use dopamine as a neurotransmitter

  • degeneration of myelin sheaths

  • antagonistic effects on acetylcholine receptors

  • damage to glial cells

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Frage 52 von 62

1

Garrett has a chronic disease that is slowly destroying the cells that produce serotonin in his brain. Which of the following will likely happen to Garrett as his disease progresses?

Wähle eine der folgenden:

  • His memory will gradually worsen.

  • He will start to show signs of Parkinson’s disease.

  • His sleep and mood will be disrupted.

  • He will begin to experience symptoms of schizophrenia.

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Frage 53 von 62

1

Which of the following disorders is associated with reduced activity at norepinephrine and serotonin receptors?

Wähle eine der folgenden:

  • depression

  • schizophrenia

  • Parkinson’s disease

  • multiple sclerosis

Erklärung

Frage 54 von 62

1

Julia is currently in the midst of a major depression. Which of the following patterns of neurotransmitter activity is most likely to be associated with her symptoms?

Wähle eine der folgenden:

  • reduced levels of GABA

  • increased activity at serotonin synapses

  • increased levels of dopamine

  • reduced activity at norepinephrine synapses

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Frage 55 von 62

1

Stuart abuses a drug that is a dopamine agonist. Which of the following is Stuart most likely to experience when he is high?

Wähle eine der folgenden:

  • deep relaxation

  • hallucinations

  • temporary paralysis

  • excessive anxiety

Erklärung

Frage 56 von 62

1

Caitlin has taken a drug that has reduced the levels of GABA in her nervous system. What side effect is Caitlin likely to experience?

Wähle eine der folgenden:

  • motor tics and other involuntary motor movements

  • increased levels of anxiety

  • depression

  • hallucinations

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Frage 57 von 62

1

Dr. Athorp has just discovered a new drug named P3X that is an agonist for GABA. What effects will this drug likely have?

Wähle eine der folgenden:

  • hallucinations and disrupted sleep patterns

  • general stimulation within the body and an increase in heart rate

  • a reduction in pain and a sense of euphoria

  • anxiety reduction and general relaxation

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Frage 58 von 62

1

Which of the following neurotransmitters always has inhibitory effects?

Wähle eine der folgenden:

  • GABA

  • glutamate

  • acetylcholine

  • norepinephrine

Erklärung

Frage 59 von 62

1

Which of the following neurotransmitters has effects on learning and memory, and on long-term potentiation?

Wähle eine der folgenden:

  • GABA

  • glutamate

  • acetylcholine

  • norepinephrine

Erklärung

Frage 60 von 62

1

Opiate drugs bind onto the same receptor sites as the body’s own endorphins. What effect, then, do opiate
drugs have?

Wähle eine der folgenden:

  • They increase anxiety and agitation.

  • They inhibit visual sensations.

  • They produce insomnia.

  • They relieve pain.

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Frage 61 von 62

1

Which of the following neurotransmitters is most similar to the drug heroin?

Wähle eine der folgenden:

  • acetylcholine

  • dopamine

  • endorphins

  • serotonin

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Frage 62 von 62

1

If you were making a new drug to treat pain, which type of neurotransmitter would you attempt to mimic?

Wähle eine der folgenden:

  • dopamine

  • monoamines

  • acetylcholine

  • endorphins

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