Pflügers Archiv

, Volume 317, Issue 4, pp 303–309 | Cite as

Changes of hypoglossal nerve activity during inhibition of chewing and swallowing by lingual nerve stimulation

  • Tadaaki Sumi
Article

Summary

In rabbits under light ether anesthesia cortically evoked rhythmic movements of chewing and swallowing or reflex swallowing by superior laryngeal nerve stimulation are inhibited when in addition the lingual nerve is stimulated.
  1. 1.

    During the inhibition, discharge in some hypoglossal nerve fiber was inhibited, while enhanced in others.

     
  2. 2.

    Facilitation or inhibition was produced in the gross potential of the hypoglossal nerve, depending on the interval between paired stimuli, the one to the cortex and the other to the lingual nerve.

     
  3. 3.

    Motoparalysis induced by gallamine triethiodide did not alter the response of the hypoglossal units.

     
  4. 4.

    Behavior of hypoglossal units during the inhibition was discussed in relation to the neural mechanisms of chewing and swallowing.

     

Key-Words

Neurophysiology Deglutition Mastication Hypoglossal Nerve 

Schlüsselwörter

Neurophysiologie Schlucken Kauen N. hypoglossus 

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References

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    Sumi, T.: Some properties of cortically-evoked swallowing and chewing in rabbits. Brain Res.15, 107–120 (1969).Google Scholar
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    —: Activity in single hypoglossal fibers during cortically induced swallowing and chewing in rabbits. Pflügers Arch.314, 329–346 (1970).Google Scholar

Copyright information

© Springer-Verlag 1970

Authors and Affiliations

  • Tadaaki Sumi
    • 1
  1. 1.Department of PhysiologyShinshu University Medical SchoolMatsumotoJapan

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