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Regional neurovasomotor responses of the pulmonary circulation

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

Abstract

The blood volume and blood flow in the lungs with the body in the horizontal and vertical position and during stimulation of sympathetic and vagus nerves were studied by the method of regional electroplethysmography in experiments on anesthetized cats with an intact thorax. The hydrostatically more heavily loaded regions of the lungs were found to be more labile toward the action of a neurogenic stimulus, as was manifested by an increase in the parasympathetic vasomotor response of the basal regions and a decrease in the response of the apical regions with the body in a vertical position. The results suggest the existence of regionally differentiated mechanisms of vasomotor control in the pulmonary circulation, aimed at compensating for postural changes in the pulmonary hemodynamics.

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Authors
  1. B. I. Mazhbich
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  2. A. S. Pogodin
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Mazhbich, B.I., Pogodin, A.S. Regional neurovasomotor responses of the pulmonary circulation. Bull Exp Biol Med 88, 1242–1244 (1979). https://doi.org/10.1007/BF00835560

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  • DOI: https://doi.org/10.1007/BF00835560

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