Opening All of the Sodium Channels on an Otherwise Typical

question 53

Multiple Choice

Opening all of the sodium channels on an otherwise typical neuron, with all other ion channels closed (which is an admittedly artificial setting) , should move its membrane potential to ________.

• A) -90 mV
• B) 0 mV
• C) equilibrium potential for sodium
• D) The membrane potential would not change, only the ion concentrations would change.

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Definitions:

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