Trigeminal somatosensory innervation of the head of a teleost fish with particular reference to nociception

@article{Sneddon2003TrigeminalSI,
  title={Trigeminal somatosensory innervation of the head of a teleost fish with particular reference to nociception},
  author={Lynne U. Sneddon},
  journal={Brain Research},
  year={2003},
  volume={972},
  pages={44-52}
}
  • L. Sneddon
  • Published 2003
  • Biology, Medicine
  • Brain Research
Trigeminal somatosensory receptors have not been characterised in teleost fish and studies in elasmobranchs have failed to identify nociceptors. The present study examined the trigeminal nerve of a teleost fish, the rainbow trout (Oncorhynchus mykiss) to determine what types of somatosensory receptors were present on the head of the trout specifically searching for nociceptors. Single unit recordings were made from receptive fields on the head of the fish innervated by the trigeminal nerve… Expand
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All receptor types except mechanothermal nociceptors showed an increase in peak firing frequency with increased strength of mechanical stimulation, with evidence of response saturation at higher intensities, and none out of 120 receptors tested gave any response to the temperature range +4 degrees C to -7 degrees C, indicating an absence of cold nocICEptors. Expand
Characterisation of chemosensory trigeminal receptors in the rainbow trout, Oncorhynchus mykiss: responses to chemical irritants and carbon dioxide
TLDR
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  • Medicine, Biology
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TLDR
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TLDR
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TLDR
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TLDR
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