All-or-nothing law and impulse frequency
What All-or-nothing law and impulse frequency means in Biology A-Level, as defined for OCR.
Definition of All-or-nothing law and impulse frequency
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Reference: OCR
A stronger stimulus gives more frequent impulses, not bigger ones, so stimulus strength is coded by impulse frequency rather than amplitude.
Topics that use All-or-nothing law and impulse frequency
- Neuronal communication (OCR A-Level)
Related terms
- 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
- Sensory neurones
Using All-or-nothing law and impulse frequency in the exam
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