The Solitary Nucleus of the Hamster: Cytoarchitecture and Pontine Connections a

The solitary nuclear complex consists of a number of subdivisions with different cytoarchitectonic features. These subdivisions differ also in the amounts of input they receive from lingual afferent axons. Chorda tympani, lingual (trigeminal), and glossopharyngeal (lingual branch) afferent axons syn...

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Bibliographic Details
Published in:Annals of the New York Academy of Sciences 1987, Vol.510 (1), p.707-709
Main Authors: WHITEHEAD, MARK C., SAVOY, LAWRENCE D.
Format: Article
Language:English
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Summary:The solitary nuclear complex consists of a number of subdivisions with different cytoarchitectonic features. These subdivisions differ also in the amounts of input they receive from lingual afferent axons. Chorda tympani, lingual (trigeminal), and glossopharyngeal (lingual branch) afferent axons synapse heavily throughout the central subdivision, less heavily in the lateral, ventral, and ventrolateral subdivisions, very lightly in the dorsal and laminar nuclei, and not at all in the medial, magnocellular and dorsolateral subdivisions. In this study the authors determined which of these subdivisions contain cells that project rostrally to the pons. To reveal the pontine projection neurons, horseradish peroxidase injections were made that filled or nearly filled the parabrachial nucleus. Comparison of the morphologies of retrogradely labeled cells with Golgi-impregnated neurons permitted identification of cell types forming the pontine projection.
ISSN:0077-8923
1749-6632
DOI:10.1111/j.1749-6632.1987.tb43673.x