Abstract
The cells of origin of the centrifugal innervation to the inner ear were investigated in the amphibian order gymnophiona. After applying HRP to the VIIIth nerve inside the otic capsul a Golgi-like labeling was obtained only in a small number of cells in the ipsilateral rhombencephalic basal plate and in the VIIIth nerve afferents. The axons of these cells course after entrance to the raphe and then turn back to the efferent cells in the reticular formation. With respect to the exclusively ipsilateral distribution, the efferent cells of gymnophions resemble those of anurans. With respect to the axon course they resemble those of urodeles, and may thus be regarded as intermediate between the two orders of amphibians. The phylogenetic significance of these findings is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
