Trigeminal sensory neurons of the sea lamprey

Summary

Intracellular recordings were made from neurons of the trigeminal sensory ganglia of young adult sea lampreys. Receptive fields were mapped, and four classes of sensory cells were identified. Touch cells gave rapidly adapting responses to indentation of the skin. Pressure cells gave slowly adapting responses to indentation of the skin. Pit organ cells gave slowly adapting responses to mechanical stimulation of single lateral line pit organs. Nociceptive cells gave slowly adapting responses to destructive stimuli, such as puncture or burning of the skin. The axons of nociceptive cells had longer refractory periods and slower conduction velocities than did the axons of the other types of cell, indicating that nociceptive cells had smaller diameter axons.

This is a preview of subscription content, log in to check access.

References

  1. Applegate, V.C.: Natural history of the sea lamprey (Petromyzon marinus) in Michigan. Spec, scient. Rep. U.S. Fish Wildl. Serv.55, 1–237 (1950)

    Google Scholar 

  2. Ariens Kappers, C.V., Huber, G.C., Crosby, E.C.: The comparative anatomy of the nervous system of vertebrates, Vol. 1. New York: MacMillan 1936

    Google Scholar 

  3. Johnston, J.B.: The brain of petromyzon. J. comp. Neurol.12, 2–86 (1902)

    Google Scholar 

  4. Kalmijn, A.J.: The detection of electric fields from inanimate and animate sources other than electric organs. In: Handb. sens. physiol., Vol. 3: Electroreceptors and other specialized receptors in lower vertebrates (ed. A. Fessard), pp. 147–200. Berlin-Heidelberg-New York: Springer 1975

    Google Scholar 

  5. Lindström, T.: On the cranial nerves of the cyclostomes with special reference toN. trigeminus. Acta Zool.30, 315–458 (1949)

    Google Scholar 

  6. Marinelli, W., Strenger, A.: Vergleichende Anatomie und Morphologie der Wirbeltiere. Teil 1:Lampetra fluviatilis. Wien: Deuticke 1954

    Google Scholar 

  7. Martin, A.R., Wickelgren, W.O.: Sensory cells in the spinal cord of the sea lamprey. J. Physiol.212, 65–83 (1971)

    Google Scholar 

  8. Martin, A.R., Wickelgren, W.O., Beranek, R.: Effects of iontophoretically applied drugs on spinal interneurones of the lamprey. J. Physiol.207, 653–665 (1970)

    Google Scholar 

  9. Rovainen, C.M.: Physiological and anatomical studies on large neurons of central nervous system of the sea lamprey (Petromyzon marinus). I. Müller and Mauthner cells. J. Neurophysiol.30, 1000–1023 (1967a)

    Google Scholar 

  10. Rovainen, C.M.: Physiological and anatomical studies on large neurons of central nervous system of the sea lamprey (Petromyzon marinus). II. Dorsal cells and giant interneurons. J. Neurophysiol.30, 1024–1042 (1967b)

    Google Scholar 

  11. Rovainen, C.M.: Synaptic interactions of identified nerve cells in the spinal cord of the sea lamprey. J. comp. Neurol.154, 189–206 (1974a)

    Google Scholar 

  12. Rovainen, C.M.: Synaptic interactions of reticulospinal neurons and nerve cells in the spinal cord of the sea lamprey. J. comp. Neurol.154, 207–223 (1974b)

    Google Scholar 

  13. Wickelgren, W.O.: Physiological and anatomical characteristics of reticulospinal neurones in lamprey. J. Physiol.270, 89–114 (1977a)

    Google Scholar 

  14. Wickelgren, W.O.: Post-tetanic potentiation, habituation and facilitation of synaptic potentials in reticulospinal neurones of lamprey. J. Physiol.270, 115–131 (1977b)

    Google Scholar 

Download references

Author information

Affiliations

Authors

Additional information

This work was supported by NIH grants 09661 and 09660. Adult sea lampreys were kindly provided by Mr. Patrick Manion of the U.S. Bureau of Sport Fisheries and Wildlife.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Matthews, G., Wickelgren, W.O. Trigeminal sensory neurons of the sea lamprey. J. Comp. Physiol. 123, 329–333 (1978). https://doi.org/10.1007/BF00656966

Download citation

Keywords

  • Receptive Field
  • Conduction Velocity
  • Lateral Line
  • Refractory Period
  • Sensory Cell