title: [The origin of efferent fibers to the inner ear on reptiles. A HRP study in Caiman crocodilus (author's transl)].
abstract: The origin of efferent fibers to the inner ear was studied in Caiman crocodilus. After injection of horseradish peroxidase into the basilar papilla or into the ampullae of the horizontal and anterior semicircular canals, neurons labeled by the granular reaction product of retrogradely transported HRP were found in the medulla oblongata bilaterally. Parent cells of the efferent cochlear bundle were found in the medial reticular nucleus and in the rostroventral division of the superior olive bilaterally. Efferent vestibular neurons were found in the medial reticular nucleus bilaterally with more neurons ipsilateral to the injection site.
mesh_terms: D000489:Alligators and Crocodiles / Q000033:anatomy & histology*; D000818:Animals; D001489:Basilar Membrane / Q000294:innervation; D004292:Dominance, Cerebral / Q000502:physiology; D007758:Ear, Inner / Q000294:innervation*; D006735:Horseradish Peroxidase; D008526:Medulla Oblongata / Q000033:anatomy & histology; D009412:Nerve Fibers / Q000648:ultrastructure*; D009476:Neurons, Efferent / Q000648:ultrastructure*; D009847:Olivary Nucleus / Q000033:anatomy & histology; D012104:Reptiles / Q000033:anatomy & histology*; D012665:Semicircular Canals / Q000294:innervation
chemical_list: D006735:Horseradish Peroxidase
vernacular_title: Der Ursprung der efferenten labyrinthären Innervation bei Reptilien. Eine HRP-Studie bei Caiman crocodilus.