title: [Electrophysiologic and anatomic demonstration of inhibitory commisural vestibular neurons in the tench (Tinca tinca)].
abstract: Horseradish peroxydase was injected intracellularly in some of the medullary neurons which, in Fish, exhibit a passive hyperpolarizing potential after spinal cord stimulation (this indicates that such neurons both electrical and chemical inhibitions of the Mauthner cells). With positive staining, commissural vestibular neurons were identified; their axons cross the midline and they establish connexions with the Mauthner cell and with vestibular neurons of both sides. Thus the existence of a crossed vestibular inhibitory pathway, previously suggested by electrophysiological studies in lower Vertebrates as well as in Mammals, is now correlated with histological evidence.
mesh_terms: D000818:Animals; D004594:Electrophysiology; D005399:Fishes / Q000033:anatomy & histology*; D007395:Interneurons / Q000502:physiology; D009433:Neural Inhibition; D009434:Neural Pathways / Q000166:cytology; D014726:Vestibular Nuclei / Q000166:cytology* / Q000502:physiology
vernacular_title: Mise en évidence électrophysiologique et anatomique de neurones vestibulaires inhibiteurs commissuraux chez la tanche (Tinca tinca).