1
OCCTH 585 Test 1 Questions with Correct
Answers for Specific Exam Mail
Where in the cell do action potentials exist?
a) cell body
b) axons
c) dendrites
d) all of the above
Ans: b) axons
Where in the cell is information received?
a) cell body
b) axons
c) dendrites
d) all of the above
Ans: c) dendrites
Put the following steps of transmitting an action potential into the correct
order.
a) Receptor molecules open up ion channels
Pretest - Stuvia US
,2
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
Ans: 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.
Ans: True.
What are 2 ways that one can change the properties of neurotransmission
(forms of neuroplasticity)?
Ans: 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?
Ans: 1. Changing size or shape of cell
2. Changing electrical properties (resistance)
3. Changing the leakiness of the membrane
Pretest - Stuvia US
,3
What are the 3 overarching forms of neuroplasticity?
Ans: 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.
Ans: 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
b) Change cell properties
c) Structural/anatomical changes in cells
Ans: 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
Pretest - Stuvia US
, 4
Ans: a) unmasking
How does dendritic pruning change the function of the cell?
Ans: It changes the size and shape of the cell, which therefore changes the
function.
True or False: Dendritic pruning happens immediately after an injury.
Ans: 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?
Ans: 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.
Ans: True.
True or False: An injury is required to drive collateral sprouting.
Ans: False. (Think about monkey's fingers that were stimulated. If something is
being used a lot, it will take over territory that is not being used that much -
no injury involved)
What are 3 pieces of evidence that we have to support that neurogenesis
does occur in adulthood?
Pretest - Stuvia US
OCCTH 585 Test 1 Questions with Correct
Answers for Specific Exam Mail
Where in the cell do action potentials exist?
a) cell body
b) axons
c) dendrites
d) all of the above
Ans: b) axons
Where in the cell is information received?
a) cell body
b) axons
c) dendrites
d) all of the above
Ans: c) dendrites
Put the following steps of transmitting an action potential into the correct
order.
a) Receptor molecules open up ion channels
Pretest - Stuvia US
,2
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
Ans: 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.
Ans: True.
What are 2 ways that one can change the properties of neurotransmission
(forms of neuroplasticity)?
Ans: 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?
Ans: 1. Changing size or shape of cell
2. Changing electrical properties (resistance)
3. Changing the leakiness of the membrane
Pretest - Stuvia US
,3
What are the 3 overarching forms of neuroplasticity?
Ans: 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.
Ans: 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
b) Change cell properties
c) Structural/anatomical changes in cells
Ans: 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
Pretest - Stuvia US
, 4
Ans: a) unmasking
How does dendritic pruning change the function of the cell?
Ans: It changes the size and shape of the cell, which therefore changes the
function.
True or False: Dendritic pruning happens immediately after an injury.
Ans: 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?
Ans: 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.
Ans: True.
True or False: An injury is required to drive collateral sprouting.
Ans: False. (Think about monkey's fingers that were stimulated. If something is
being used a lot, it will take over territory that is not being used that much -
no injury involved)
What are 3 pieces of evidence that we have to support that neurogenesis
does occur in adulthood?
Pretest - Stuvia US
