BRAINCAKE

The Action Potential

AQA A-level BiologyNeuronal CommunicationLesson 16 of 38

The temporary reversal of the charge across the axon membrane is called the action potential.

Diagram

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Key terms in this lesson

resting potential
The potential difference of about -70mV maintained across the membrane of a neurone that is not conducting an impulse, with the inside negative relative to the outside.

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