Biology A-Level
Action potential ion movements
What Action potential ion movements means in Biology A-Level, as defined for OCR.
Definition of Action potential ion movements
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Reference: OCR
Voltage-gated Na⁺ channels open and Na⁺ rushes in, then Na⁺ channels close and K⁺ channels open so K⁺ leaves the axon.
Topics that use Action potential ion movements
- Neuronal communication (OCR A-Level)
Related terms
- All-or-nothing law and impulse frequency
- Calcium-triggered exocytosis
- Excitatory and inhibitory postsynaptic effects
- generator potential
- Relay neurones
- Resting potential and the sodium–potassium pump
- saltatory conduction
- Saltatory conduction and refractory period
Using Action potential ion movements in the exam
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