Which of the Following Best Describes the Firing of a Neuron

question 130

Multiple Choice

Which of the following best describes the firing of a neuron (action potential) ?

• A) a change in axonal membrane permeability facilitating an inflow of positive ions
• B) an electrical current initiated in the cell body which flows the length of the axon
• C) the opening of ion channels, promoting a negative charge within the axonal membrane
• D) the transmission of neuronal impulses across the synaptic cleft

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