OCCTH 585 Test 1 Questions and
Answers 100% Pass
Where in the cell do action potentials exist?
a) cell body
b) axons
c) dendrites
d) all of the above - ✔✔b) axons
Where in the cell is information received?
a) cell body
b) axons
c) dendrites
d) all of the above - ✔✔c) dendrites
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,Put the following steps of transmitting an action potential into the correct order.
a) Receptor molecules open up ion channels
b) Action potential activates synaptic bouton
c) Neurotransmitter diffuses across gap to postsynaptic cleft
d) Synaptic vesicles releases neurotransmitter into the synaptic cleft
e) Ions flow through into postsynaptic cell
f) Neurotransmitter binds to receptor molecule on postsynaptic cell - ✔✔b) Action
potential activates synaptic bouton
d) Synaptic vesicles releases neurotransmitter into the synaptic cleft
c) Neurotransmitter diffuses across gap to postsynaptic cleft
f) Neurotransmitter binds to receptor molecule on postsynaptic cell
a) Receptor molecules open up ion channels
e) Ions flow through into postsynaptic cell
True or False: Cells receive input from multiple sources coming onto the cell body and
dendrites. - ✔✔True.
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,What are 2 ways that one can change the properties of neurotransmission (forms of
neuroplasticity)? - ✔✔1. Change in neurotransmitter release
2. Change in the size or shape of the post-synaptic potential
What are 3 forms of neuroplasticity that result in a change in cell properties? - ✔✔1.
Changing size or shape of cell
2. Changing electrical properties (resistance)
3. Changing the leakiness of the membrane
What are the 3 overarching forms of neuroplasticity? - ✔✔1. Change the properties of
neurotransmission
2. Change cell properties
3. Structural/anatomical changes in cells
True or False: the bulk of the (neuroplasticity) changes that we see in rehab are a result
of structural or anatomical changes in cells. - ✔✔False. (This form of neuroplasticity
takes a lot of time, and this is not the bulk of change that we will be seeing in rehab)
Unmasking is an example of which form of neuroplasticity?
a) Change the properties of neurotransmission
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, b) Change cell properties
c) Structural/anatomical changes in cells - ✔✔c) Structural/anatomical changes in cells
Which of the following is responsible for the phenomenon known as phantom limb
syndrome?
a) unmasking
b) collateral sprouting
c) dendritic pruning
d) neurogenesis - ✔✔a) unmasking
How does dendritic pruning change the function of the cell? - ✔✔It changes the size
and shape of the cell, which therefore changes the function.
True or False: Dendritic pruning happens immediately after an injury. - ✔✔False. (it
takes time, as the dendrites will stay there for a while hoping that new inputs will come
in and try to connect)
Why does the body undergo dendritic pruning? - ✔✔Dendrites without input are
metabolically costly, and we don't want to waste energy sustaining something that is
not contributing to anything
True or False: Collateral sprouting is activity dependent. - ✔✔True.
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Answers 100% Pass
Where in the cell do action potentials exist?
a) cell body
b) axons
c) dendrites
d) all of the above - ✔✔b) axons
Where in the cell is information received?
a) cell body
b) axons
c) dendrites
d) all of the above - ✔✔c) dendrites
Katelyn Whitman, All Rights Reserved © 2025 1
,Put the following steps of transmitting an action potential into the correct order.
a) Receptor molecules open up ion channels
b) Action potential activates synaptic bouton
c) Neurotransmitter diffuses across gap to postsynaptic cleft
d) Synaptic vesicles releases neurotransmitter into the synaptic cleft
e) Ions flow through into postsynaptic cell
f) Neurotransmitter binds to receptor molecule on postsynaptic cell - ✔✔b) Action
potential activates synaptic bouton
d) Synaptic vesicles releases neurotransmitter into the synaptic cleft
c) Neurotransmitter diffuses across gap to postsynaptic cleft
f) Neurotransmitter binds to receptor molecule on postsynaptic cell
a) Receptor molecules open up ion channels
e) Ions flow through into postsynaptic cell
True or False: Cells receive input from multiple sources coming onto the cell body and
dendrites. - ✔✔True.
Katelyn Whitman, All Rights Reserved © 2025 2
,What are 2 ways that one can change the properties of neurotransmission (forms of
neuroplasticity)? - ✔✔1. Change in neurotransmitter release
2. Change in the size or shape of the post-synaptic potential
What are 3 forms of neuroplasticity that result in a change in cell properties? - ✔✔1.
Changing size or shape of cell
2. Changing electrical properties (resistance)
3. Changing the leakiness of the membrane
What are the 3 overarching forms of neuroplasticity? - ✔✔1. Change the properties of
neurotransmission
2. Change cell properties
3. Structural/anatomical changes in cells
True or False: the bulk of the (neuroplasticity) changes that we see in rehab are a result
of structural or anatomical changes in cells. - ✔✔False. (This form of neuroplasticity
takes a lot of time, and this is not the bulk of change that we will be seeing in rehab)
Unmasking is an example of which form of neuroplasticity?
a) Change the properties of neurotransmission
Katelyn Whitman, All Rights Reserved © 2025 3
, b) Change cell properties
c) Structural/anatomical changes in cells - ✔✔c) Structural/anatomical changes in cells
Which of the following is responsible for the phenomenon known as phantom limb
syndrome?
a) unmasking
b) collateral sprouting
c) dendritic pruning
d) neurogenesis - ✔✔a) unmasking
How does dendritic pruning change the function of the cell? - ✔✔It changes the size
and shape of the cell, which therefore changes the function.
True or False: Dendritic pruning happens immediately after an injury. - ✔✔False. (it
takes time, as the dendrites will stay there for a while hoping that new inputs will come
in and try to connect)
Why does the body undergo dendritic pruning? - ✔✔Dendrites without input are
metabolically costly, and we don't want to waste energy sustaining something that is
not contributing to anything
True or False: Collateral sprouting is activity dependent. - ✔✔True.
Katelyn Whitman, All Rights Reserved © 2025 4
