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/lp/karger/afferent-connections-of-nervus-facialis-and-nervus-glossopharyngeus-in-qR0s7OLoOi
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- Publisher
- Karger
- Copyright
- © 1984 S. Karger AG, Basel
- ISSN
- 0006-8977
- eISSN
- 1421-9743
- DOI
- 10.1159/000121304
- Publisher site
- See Article on Publisher Site
Abstract
The afferent connections of the facial nerve and glossopharyngeal nerve in the pigeon have been studied with the Fink-Heimer I method after ganglion lesions. The nucleus ventrolateralis anterior of the solitary complex and an indistinct cell group S VII medial to the nucleus interpolaris of the descending trigeminal tract are the terminal fields for facial afferents. The n. ventrolateralis anterior also receives an important projection from the distal glossopharyngeal ganglion. Other projection areas of this ganglion are the n. presulcalis, n. centralis anterior, n. intermedius anterior and the parasolitary nucleus. Both ganglia have only ipsilateral projections. A lesion in the jugular ganglion complex causes degeneration throughout the ipsilateral solitary complex, in the contralateral n. commissuralis and n. centralis posterior and in the n. cuneatus externus. The lack of a substantial contribution to the trigeminal system is ascribed to the absence of mechanoreceptors in the tongue. The implications for the organization of neuronal pathways related to the feeding behavior are discussed.
Journal
"Brain, Behavior and Evolution" – Karger
Published: Jan 1, 1984
Keywords: Facial afferents; Glossopharyngeal afferents; Trigeminal system; Feeding behavior