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Neuron structure and potential
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What is the name of cell that produces myelin sheath?
Schwan cell
(True or False) Axons are the first part of neuron that receive stimuli
False
(True or False) Na+/K+ ATPase pump moves 3Na+ out for every 2K+ in
True
At what stages do Potassium (K+) Channels open?
Repolarization
At what stages do Sodium (Na+) Channels open?
Depolarization
In resting potential, neurons have more _________ on the outside of the cell membrane.
Na+ (sodium)
When a neuron is resting, the inside of the axon has a ____________ charge
Negative
When a neuron is not engaged in an impulse.
Resting potential
What is the insulating membrane that surrounds parts of the axon that helps to protect & propagate action potential?
Myelin sheath
At which point on the diagram does repolarisation of the axon occur?
C
At which point on the diagram does depolarisation of the axon occur?
B
What is the normal resting potential of a neuron cell membrane?
-70mV