Hyperpolarization results from slow-closing potassium channels, causing excess potassium efflux and a more negative potential than resting.
Hyperpolarization happens because potassium channels are slow to close, leading to excessive potassium diffusion outwards and a potential more negative than the resting potential.
| Front | Hyperpolarisation (action potential formation) |
|---|---|
| Back | Potassium ion channels are slow to close to there is a too many potassium ions diffusing out of neurone and potential difference becomes more negative than resting potential |
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