2735175
Description
Mind Map by lucyslade1, updated more than 1 year ago
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Created by lucyslade1
over 9 years ago
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Graded Potentials
- If concentration of ions across
plasma membrane changes,
membrane's voltage changes
- Hyperpolarisation
- Increase in polarity to make it more negative
- Cause
- Efflux of K+ through passive K+ channels
- Influx of Cl- through
passive Cl- channels
- Efflux of K+ through passive K+ channels
- Increase in polarity to make it more negative
- Depolarisation
- Decrease in polarity to make it more positive
- Cause
- Influx of Na+ through
(normally closed) Na+
channels
- Influx of Na+ through
(normally closed) Na+
channels
- Decrease in polarity to make it more positive
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