OCCTH 585 TEST 1 2025 |
GUARANTEED ACCURATE
ANSWERS |PASS!!
Where in the cell do action potentials exist?
a) cell body
b) axons
c) dendrites
d) all of the above - ACCURATE ANSWERS✔✔ b) axons
Where in the cell is information received?
a) cell body
b) axons
c) dendrites
d) all of the above - ACCURATE ANSWERS✔✔ c) dendrites
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 -
ACCURATE ANSWERS✔✔ 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. - ACCURATE ANSWERS✔✔ True.
What are 2 ways that one can change the properties of neurotransmission
(forms of neuroplasticity)? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE
ANSWERS✔✔ 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. -
ACCURATE ANSWERS✔✔ 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 - ACCURATE ANSWERS✔✔
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 - ACCURATE ANSWERS✔✔ a) unmasking
How does dendritic pruning change the function of the cell? -
ACCURATE ANSWERS✔✔ It changes the size and shape of the cell,
which therefore changes the function.
True or False: Dendritic pruning happens immediately after an injury. -
ACCURATE ANSWERS✔✔ 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? - ACCURATE
ANSWERS✔✔ 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. - ACCURATE
ANSWERS✔✔ True.
True or False: An injury is required to drive collateral sprouting. -
ACCURATE ANSWERS✔✔ 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)
GUARANTEED ACCURATE
ANSWERS |PASS!!
Where in the cell do action potentials exist?
a) cell body
b) axons
c) dendrites
d) all of the above - ACCURATE ANSWERS✔✔ b) axons
Where in the cell is information received?
a) cell body
b) axons
c) dendrites
d) all of the above - ACCURATE ANSWERS✔✔ c) dendrites
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 -
ACCURATE ANSWERS✔✔ 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. - ACCURATE ANSWERS✔✔ True.
What are 2 ways that one can change the properties of neurotransmission
(forms of neuroplasticity)? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔ 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? - ACCURATE
ANSWERS✔✔ 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. -
ACCURATE ANSWERS✔✔ 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 - ACCURATE ANSWERS✔✔
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 - ACCURATE ANSWERS✔✔ a) unmasking
How does dendritic pruning change the function of the cell? -
ACCURATE ANSWERS✔✔ It changes the size and shape of the cell,
which therefore changes the function.
True or False: Dendritic pruning happens immediately after an injury. -
ACCURATE ANSWERS✔✔ 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? - ACCURATE
ANSWERS✔✔ 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. - ACCURATE
ANSWERS✔✔ True.
True or False: An injury is required to drive collateral sprouting. -
ACCURATE ANSWERS✔✔ 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)
