title: Efferent connections of the vestibular nuclei in the rat: a neuromorphological study using PHA-L.
abstract: The efferent connections of the superior, medial, lateral, and descending vestibular nuclei were studied with anterograde tracing methods in rats. The following areas of termination could be discerned: (1) In the diencephalon, labeled terminals were detected in the thalamus. (2) In the mesencephalon, the red nucleus and motor nuclei involved in eye movements were richly supplied by the vestibular nuclei. (3) In the rhombencephalon, extensive intrinsic connections of all vestibular nuclei were demonstrated. Strong commissural connections were found among the medial, superior, and descending vestibular nuclei. The inferior olive received labeled fibers exclusively from the lateral vestibular nuclei. Individual differences were demonstrated in the termination areas in the reticular formation. (4) In the spinal cord, most of the descending vestibular fibers were found in the ipsilateral anterior funiculus.
authors.affiliation: Department of Anatomy, Histology and Embryology, University of Debrecen, Medical and Health Science Center, Debrecen, Hungary. matesz@chondron.anat.dote.hu
authors.forename: Clara
authors.initials: C
authors.lastname: Matesz
authors.forename: Timea
authors.initials: T
authors.lastname: Bácskai
authors.forename: E
authors.initials: E
authors.lastname: Nagy
authors.forename: Gábor
authors.initials: G
authors.lastname: Halasi
authors.forename: Akos
authors.initials: A
authors.lastname: Kulik
mesh_terms: D000818:Animals; D001931:Brain Mapping; D004525:Efferent Pathways / Q000502:physiology; D010835:Phytohemagglutinins; D051381:Rats; D017208:Rats, Wistar; D009435:Synaptic Transmission; D014726:Vestibular Nuclei / Q000502:physiology*
chemical_list: D010835:Phytohemagglutinins; C100156:leukoagglutinins, plants