Abstract
The sites of origin of serotoninergic afferents in the trigeminal motor (Vm), facial (VII), and hypoglossal nuclei (XII) were studied in the rat by fluorescent retrograde labeling with Fluoro-Gold, in combination with immunofluorescence histochemistry for serotonin (5-HT). The results indicated: (1) The nucleus raphe magnus, nucleus raphe pallidus, and nucleus raphe obscurus contained 5-HT neurons projecting to the Vm, VII or XII. (2) The nucleus raphe dorsalis sends 5-HT fibres to the Vm and VII, but not to the XII. (3) The gigantocellular reticular nucleus pars alpha contained 5-HT neurons projecting to the VII.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Afferent Pathways / cytology
-
Afferent Pathways / physiology
-
Animals
-
Cranial Nerves / cytology
-
Cranial Nerves / physiology*
-
Facial Nerve / cytology
-
Facial Nerve / physiology
-
Fluorescent Dyes
-
Hypoglossal Nerve / cytology
-
Hypoglossal Nerve / physiology
-
Immunoenzyme Techniques
-
Immunohistochemistry
-
Male
-
Neurons, Afferent / physiology*
-
Raphe Nuclei / physiology
-
Rats
-
Rats, Wistar
-
Reticular Formation / cytology
-
Reticular Formation / physiology
-
Serotonin / immunology
-
Serotonin / physiology*
-
Stilbamidines*
-
Trigeminal Ganglion / cytology
-
Trigeminal Ganglion / physiology
Substances
-
2-hydroxy-4,4'-diamidinostilbene, methanesulfonate salt
-
Fluorescent Dyes
-
Stilbamidines
-
Serotonin