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Potassium Potential Ion Channels Membrane Repolarisation Action Formation

Repolarization occurs when sodium channels close and potassium channels open, allowing potassium efflux and return to resting potential.

Repolarization occurs as sodium channels close and potassium channels open, allowing potassium ions to diffuse out, returning the membrane to its resting potential.

Front Repolarisation (action potential formation)
Back At potential difference of +30mV sodium ion channels close

Potassium ion channels open

Membrane more permeable to potassium

Potassium ions diffuse out down potassium ion conncentation gradient

Membrane back to resting potential

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