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Reversal potential
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In a [[biological membrane]], the '''reversal potential''' is the [[membrane potential]] at which the direction of ionic current reverses. At the reversal potential, there is no net flow of ions from one side of the membrane to the other. For channels that are permeable to only a single type of ion, the reversal potential is identical to the [[equilibrium potential]] of the ion.<ref name="fundNeuro" /><ref name="Purves"/><ref name="expBrain"/>
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