Video - Neuron action potential
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Video Summary
An action potential is defined as a brief change in the electrical potential across the membrane of a neuron that occurs in response to a stimulus. An action potential occurs when neuronal dendrites receive enough excitatory postsynaptic potential (EPSPs) to open voltage-gated sodium channels, resulting in rapid depolarization of the neuronal membrane and propagation of an electrical charge down the length of the axon.
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