Localization of the sensory neurons in the canine nodose ganglion sending fibers into the internal branch of the superior laryngeal nerve.

The distinct localization of the sensory neurons in the canine nodose ganglion that send fibers into the internal branch of the superior laryngeal nerve (the main sensory pathway from the larynx) was studied using horseradish peroxidase technique. The labeled cells were located mainly in the rostral one-third of the lateral side of the nodose ganglion. We conclude that the localization of these labeled cells does not reflect a difference in cellular role or function but is due to the course of the nerve's fibers.