title: Chorda tympani nerve fibers in man.
abstract: Four normal human chorda tympani nerves were studied for quantitative data of nerve fibers. The average total number of nerve fibers was 5360 (range, 4941-6020). The average number of unmyelinated fibers was 1835 (range, 1518-2083), or 34% of the total. The diameters of myelinated fibers ranged from 1 to 7 microns, peaking at 2 microns. Most of the unmyelinated axons had a diameter between 0.5 and 2 microns. The importance of the quantitative evaluation of the chorda tympani nerve fibers is stressed in reporting structural changes.
mesh_terms: D000886:Anthropometry; D002814:Chorda Tympani Nerve / Q000648:ultrastructure*; D006801:Humans; D009412:Nerve Fibers / Q000648:ultrastructure*; D009413:Nerve Fibers, Myelinated / Q000648:ultrastructure*