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Respiratory electromyograms during resistance to breathing before and after vagal section

  • Pathological Physiology and General Pathology
  • Published:
Bulletin of Experimental Biology and Medicine Aims and scope

Summary

Electrical activity of the respiratory muscles, including diaphragm, intercartilaginous part of the internal intercostal and internal oblique abdominal muscles, was recorded from electrodes chronically implanted in dogs. The disturbed coordination of the respiratory muscles which followed vagotomy was indicated by a sharp arrest of the increased electrical activity at the end of inspiration, and its failure to occur during expiration; in addition there was no longer any overlap between the activities in the inspiratory and expiratory phases. These alterations are attributed to functional changes occurring in the respiratory center and caused by the partial deafferentation through vagotomy. The functional changes in the respiratory musculature caused by introducing resistance to breathing depend on the excitation of the respiratory center, which in turn is determined by its afferentation.

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Authors and Affiliations

  1. Laboratory of the Comparative Pathology of the Nervous System Institute of Normal and Pathological Physiology, AMN SSSR, Moscow

    Yin Chi-chang

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  1. Yin Chi-chang
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Chi-chang, Y. Respiratory electromyograms during resistance to breathing before and after vagal section. Bull Exp Biol Med 50, 1013–1018 (1961). https://doi.org/10.1007/BF00784868

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  • DOI: https://doi.org/10.1007/BF00784868

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