What effect does myelin have on an action potential?

neur 100 sp 25 final review

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1.
FLASHCARD QUESTION
Front
Back
speeds it up
2.
FLASHCARD QUESTION
Front
What channels open once Vm reaches threshold?
Back
VG Na+ channels
3.
FLASHCARD QUESTION
Front
What effect does an influx of Cl- have on the likelihood of a neuron to fire an action potential?
Back
decrease
4.
FLASHCARD QUESTION
Front
Which of the following best describes an inhibitory postsynaptic potential (IPSP)?
Options: A depolarization that brings the neuron closer to threshold, A hyperpolarization that makes the neuron less likely to fire, A rapid action potential, An opening of sodium channels
Back
A hyperpolarization that makes the neuron less likely to fire
5.
FLASHCARD QUESTION
Front
Which type of receptor has a slower but longer-lasting effect on the postsynaptic cell?
Back
Metabotropic
6.
FLASHCARD QUESTION
Front
Damage to the basal ganglia is most likely to affect:
Back
Motor control
7.
FLASHCARD QUESTION
Front
Which brain region is essential for forming new declarative memories?
Back
Hippocampus
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