The Oligodendrocyte Cells of the Central Nervous System and Communication 4.
Oligodendrocytes produce the myelin that insulates axons and makes synaptic transmission faster.
Schwann cells, another kind of glial cell, are found in the peripheral system and make a slightly different kind of myelin. An 'action potential' is the name for an electrical message carried along the axon or dendrite of a neuron, like an electrical impulse carried along a wire. A wire carries electricity both faster and farther when it is insulated . The longer the wire is, the more important the insulation is for efficient conduction. Oligodendrocytes and Schwann cells produce the myelin tha insults axons.