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- 1. Multiple Choice
What is it called when positively charged particles are outside of the neuron and negatively charged particles are inside the neuron?
resting potential
action potential
refractory period
depolarization
- 2. Multiple Choice
What is a brief electrical charge that travels down the axon of the neuron?
resting potential
action potential
refractory period
polarization
- 3. Multiple Choice
During the action potential, ______ charged particles enter the axon.
negative
neutral
positive
strongly
- 4. Multiple Choice
What is the level of stimulation required to trigger a neural impulse/ action potential?
threshold
refractory period
sodium particles
potassium particles
- 5. Multiple Choice
Depolarization is
the mixing of positive and negative charges within the axon
the separation of positive and negative charges
refractory period
polarization
- 6. Multiple Choice
What is a brief resting pause that occurs after a neuron has fired?
resting potential
action potential
refractory period
depolarization
- 7. Multiple Choice
The sodium-potassium pump is the mechanism by which ions (charged particles) are allowed to pass through the membrane of the cell.
True
False
- 8. Multiple Choice
The threshold for an action potential is:
100 millivolts
0 millivolts
-55 millivolts
-100 millivolts
- 9. Multiple Choice
What happens when the action potential/ neural impulse reaches the end of the axon?
neurotransmitters are released into the synapse
the process begins again
potassium enters the axon
sodium enters the axon
- 10. Multiple Choice
A neurotransmitter's reabsorption by the sending neuron is called:
reuptake
depolarization
polarization
refractory period
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