How does saltatory conduction take place along a nerve fiber?
Saltatory conduction describes the way an electrical impulse skips from node to node down the full length of an axon, speeding the arrival of the impulse at the nerve terminal in comparison with the slower continuous progression of depolarization spreading down an unmyelinated axon. Along with a myelinated nerve fiber, the conduction of impulse is called saltatory conduction. This is so because the ionic changes and consequent depolarization are taking place only.