Biology A-Level
local currents
What local currents means in Biology A-Level, as defined for AQA.
Definition of local currents
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Reference: AQA
Sodium ions spreading sideways inside the axon from the depolarised point, depolarising the adjacent patch of membrane to threshold.
Topics that use local currents
- Nerve impulses (A-level only) (AQA A-Level)
Related terms
- absolute refractory period
- axon and dendrites
- depolarisation
- differential membrane permeability
- maximum impulse frequency
- myelin sheath
- nodes of Ranvier
- relative refractory period
Using local currents in the exam
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