
Neuronal Signaling and Synaptic Transmission Explained

Interactive Video
•
Biology, Science, Chemistry
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used to describe the electrical impulse sent down a neuron's axon?
Action potential
Membrane potential
Resting potential
Synaptic potential
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what voltage does the neuron's charge need to reach to open voltage-gated sodium channels?
-70 millivolts
-55 millivolts
-65 millivolts
-60 millivolts
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ion is responsible for making the inside of a neuron more positive during an action potential?
Potassium
Chloride
Sodium
Calcium
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the resting membrane potential of a neuron?
-55 millivolts
-50 millivolts
-70 millivolts
-90 millivolts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when calcium ions enter the synaptic terminal?
They close sodium channels
They stimulate vesicles to release neurotransmitters
They cause hyperpolarization
They inhibit neurotransmitter release
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when an action potential reaches the end of a neuron?
It stops immediately
It triggers the release of neurotransmitters
It causes the neuron to shrink
It reverses direction
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which neurotransmitter is mentioned as an example of an excitatory neurotransmitter?
Serotonin
Glutamate
Dopamine
GABA
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