Which one of the following describes saltatory conduction ?
Faster than conduction on an unmyelinated fiber
Saltatory conduction is the propagation of action potentials along myelinated axons. Here the signal jumps from one node of Ranvier to the next node, increasing the conduction velocity of action potentials. The uninsulated nodes of Ranvier are the only places along the axon where membrane depolarization and ion exchange occurs across the axon membrane. On the contrary, in an unmyelinated neuron, the signal is transmitted from one neuronal segment to another as depolarization and repolarization, making the process a lot slower.