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OCCTH 585 Test 1|Neurology-Questions & Answers
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OCCTH 585 Test 1|Neurology-Questions & Answers
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OCCTH 585 Test 1| Neurology-Questions & AnswersWhat are 3 forms of neuroplasticity that result in a change in cell properties? Correct Ans-
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? Correct 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. Correct 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)
, OCCTH 585 Test 1| Neurology-Questions & Answers
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 Correct 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 Correct Ans-a) unmasking
, OCCTH 585 Test 1| Neurology-Questions & Answers
How does dendritic pruning change the function of the cell? Correct 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. Correct 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? Correct 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. Correct Ans-True.
, OCCTH 585 Test 1| Neurology-Questions & Answers
True or False: An injury is required to drive collateral sprouting. Correct 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? Correct Ans-1. Tissues in our body produce new cells (blood, bone
remodelling, etc.)
2. Glial cells produce new cells in response to injury
3. Neurogenesis occurs in vertebrate species
In which 2 areas of the brain do neural stem cells exist? Correct Ans-1. Lateral ventricle
2. Hippocampus
Neurogenesis in the lateral ventricle is involved in which function?
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