Origin of the parallel fibers in the cerebellar crest overlying the intermediate nucleus of the elasmobranch hindbrain.
This study utilizes anterograde transport of horseradish peroxidase (HRP), Golgi staining, and electrophysiological techniques to demonstrate the origin of the parallel fibers which constitute the molecular layer overlying the intermediate nucleus of the dogfish hindbrain. The parallel fibers are shown to arise from granule cells of the auricle. The majority come from the granular area of the lower leaf of the auricles, which is termed the lateral granule cell area of the auricle. A band of parallel fibers at the ventrolateral extent of the molecular layer arises from the ipsilateral and contralateral granule cell layers of the upper leaf of the auricle. The functional continuity of the molecular layer between vestibular and lateral-liner areas may provide an additional basis for interactions between these two sense modalities.
D000200:Action Potentials; D000818:Animals; D001921:Brain / Q000033:anatomy & histology*; D002531:Cerebellum / Q000033:anatomy & histology / Q000502:physiology*; D004284:Dogfish / Q000502:physiology*; D004594:Electrophysiology; D006735:Horseradish Peroxidase; D009434:Neural Pathways; D012754:Sharks / Q000502:physiology*; D000159:Vestibulocochlear Nerve / Q000502:physiology
D006735:Horseradish Peroxidase