title: Vestibular afferents to the motoneurons of glossopharyngeal and vagus nerves in the frog, Rana esculenta.
abstract: The aim of this work was to study whether the vestibular afferent fibers establish direct connections with the motoneurons of glossopharyngeal and vagus nerves of the frog, Rana esculenta. In anaesthetized animals the vestibulocochlear nerve and the common root of glossopharyngeal-vagus and accessory (IX-X-XI) nerves were simultaneously labeled with fluorescein dextran amine (vestibulocochlear nerve) and tetramethylrhodamine dextran amine (IX-X-XI). With a confocal laser scanning microscope we could detect close appositions between the vestibular afferent fibers and somatodendritic components of the general and special visceral motoneurons of the ambiguus nucleus of IX-X nerves. The direct impulse transmission may provide a quick and immediate response of cardiovascular and gastrointestinal system upon body displacement.
authors: Department of Anatomy, University of Debrecen, Medical and Health Science Center, Debrecen, Hungary.
authors: Adám
authors: A
authors: Deák
authors: Tímea
authors: T
authors: Bácskai
authors: Gábor
authors: G
authors: Veress
authors: Clara
authors: C
authors: Matesz
mesh_terms: D000344:Afferent Pathways / Q000166:cytology*; D000818:Animals; D005930:Glossopharyngeal Nerve / Q000166:cytology*; D018613:Microscopy, Confocal; D009046:Motor Neurons / Q000166:cytology*; D011893:Rana esculenta / Q000033:anatomy & histology*; D014630:Vagus Nerve / Q000166:cytology*; D014725:Vestibular Nerve / Q000166:cytology*