ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2010
Central regulation of the pharyngeal and upper esophageal reflexes during swallowing in the Japanese eel.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 6 citations in OpenAlex.
- Molecular characterization and distribution of motilin and motilin receptor in the Japanese medaka Oryzias latipes.Cell and tissue research · 2024Article
- Paracrine and endocrine pathways of natriuretic peptides assessed by ligand-receptor mapping in the Japanese eel brain.Cell and tissue research · 2024Article
- Constitutive accessibility of circulating proteins to hippocampal neurons in physiologically normal rats.Brain and behavior · 2020Article
- Impact of dehydration on the forebrain preoptic recess walls in the mudskipper, Periophthalmus modestus: a possible locus for the center of thirst.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2016Article
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2 authors at 1 institution in 1 country.
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Abstract
We investigated the regulation of the pharyngeal and upper esophageal reflexes during swallowing in eel. By retrograde tracing from the muscles, the motoneurons of the upper esophageal sphincter (UES) were located caudally within the mid-region of the glossopharyngeal-vagal motor complex (mGVC). In contrast, the motoneurons innervating the pharyngeal wall were localized medially within mGVC. Sensory pharyngeal fibers in the vagal nerve terminated in the caudal region of the viscerosensory column (cVSC). Using the isolated brain, we recorded 51 spontaneously active neurons within mGVC. These neurons could be divided into rhythmically (n = 8) and continuously (n = 43) firing units. The rhythmically firing neurons seemed to be restricted medially, whereas the continuously firing neurons were found caudally within mGVC. The rhythmically firing neurons were activated by the stimulation of the cVSC. In contrast, the stimulation of the cVSC inhibited firing of most, but not all the continuously firing neurons. The inhibitory effect was blocked by prazosin in 17 out of 38 neurons. Yohimbine also blocked the cVSC-induced inhibition in five of prazosin-sensitive neurons. We suggest that the neurons in cVSC inhibit the continuously firing motoneurons to relax the UES and stimulate the rhythmically firing neurons to constrict the pharynx simultaneously.
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