ANALYSIS OF A MYELINATED NERVE MODEL.

A simple model for a myelinate nerve fiber is analyzed to determine the velocity of propagation and the shape of the leading edge potential. The model considered is a generalization of one which has provided a satisfactory description of conduction along a smooth or nonmyelinated fiber. It is shown that if the active nodes are sufficiently separated the delay from node to node increases only logarithmically with node spacing. Under these conditions the pulse velocity increases almost linearly with node spacing.