Journal article
Efferents to the labyrinth of the river lamprey ( Lampetra fluviatilis) as revealed with retrograde tracing techniques
Neuroscience letters, Vol.96(3), pp.241-246
1989
DOI: 10.1016/0304-3940(89)90385-6
PMID: 2717052
Abstract
The cells of origin of centrifugal fibres to the labyrinth were examined in a jawless vertebrate, the lamprey, with several retrograde tracers (horseradish peroxidase (HRP), fluorescein isothiocyanate (FITC) and rhodamine coupled dextran-amines (FDA and RDA), and cobalt-lysine) that had been applied to the eighth nerve. With all 3 techniques, up to 20 cells were consistently labelled ipsilaterally, adjacent to the Mauthner cell; none were labelled on the contralateral side. The axons of the efferent cells emanate either from lateral dendrites or the perikaryon and course laterally towards the ipsilateral eighth nerve root. The dendrites ramify widely in the basal plate and may thus receive diverse inputs. The same tracers were applied to the lateral-line nerve and afferent fibres were labelled but no efferent cells, thus confirming previous reports. These data suggest that lampreys have an efferent innervation to the labyrinth but not to the lateral line.
Details
- Title: Subtitle
- Efferents to the labyrinth of the river lamprey ( Lampetra fluviatilis) as revealed with retrograde tracing techniques
- Creators
- B Fritzsch - University of Bielefeld, Faculty of Biology, Bielefeld F.R.GR Dubuc - Karolinska Institutet, The Nobel Institute for Neurophysiology, Stockholm SwedenY Ohta - Karolinska Institutet, The Nobel Institute for Neurophysiology, Stockholm SwedenS Grillner - Karolinska Institutet, The Nobel Institute for Neurophysiology, Stockholm Sweden
- Resource Type
- Journal article
- Publication Details
- Neuroscience letters, Vol.96(3), pp.241-246
- DOI
- 10.1016/0304-3940(89)90385-6
- PMID
- 2717052
- NLM abbreviation
- Neurosci Lett
- ISSN
- 0304-3940
- eISSN
- 1872-7972
- Publisher
- Elsevier Ireland Ltd
- Language
- English
- Date published
- 1989
- Academic Unit
- Iowa Neuroscience Institute; Biology; Craniofacial Anomalies Research Center
- Record Identifier
- 9984070591502771
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