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Saltatory Conduction

Myelinated neurones propagate nerve impulses about 100× faster than non-myelinated neurones.This is because depolarisation can only occur at the nodes of Ranvier so there are longer localised circuits and the action potential jumps from one node to the next.This is called saltatory conduction.

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Specification: AQA Biology (7402), A-level, 3.6.2.1 Nerve impulses. Topic: Neuronal Communication.

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