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The effect of the superior cervical sympathetic ganglia on the blood pressure of rabbits in the absence of the thyroid and sex hormones

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

Summary

In male rabbits chronic irritation of the superior cervical sympathetic ganglia was done by encirling them with a silver wire; in other experiments extirpation of these ganglia was performed in normal rabbits. Irritation of the ganglia provokes a rise in the blood pressure. Desympathization either does not change the blood pressure of decreases it somewhat.

Against the background of postcastrational hypertension stimulation of the ganglia leads to further blood pressure rise whereas desympathization — decreases it.

In thyroidectomized rabbits with reduced blood pressure stimulation of the superior cervical ganglia provokes a blood pressure rise. The effect produced extirpation of these ganglia was quite different from that in normal animals (the blood pressure rise was even more pronounced than after the irriation (1,5-fold). Consequently, in thyroidectomy an inversion of the desympathization effect is observed. This phenomenon testifies to the significance of thyroid hormones in bringing about the influence of sympathetic impulses.

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Authors and Affiliations

  1. Department of Histology of the Kharkov Medical Institute, Kharkov, USSR

    S. V. Zhukova

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  1. S. V. Zhukova
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Zhukova, S.V. The effect of the superior cervical sympathetic ganglia on the blood pressure of rabbits in the absence of the thyroid and sex hormones. Bull Exp Biol Med 53, 536–539 (1963). https://doi.org/10.1007/BF00786739

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  • DOI: https://doi.org/10.1007/BF00786739

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