Incremental conduction velocity of single afferent fibers innervating frog taste organ

The mean diameter of myelinated afferent fibers from the taste disk located on the frog tongue was 5.5 micrometers within the fungiform papillae and increased at a rate of 0.8 micrometers/cm length of fibers. A gradual increase in conduction velocity of single afferent fibers from the taste disk was confirmed electrophysiologically.