Role of chemoreceptors in the zone of vertebral arteries in the formation of the cardiorespiratory functional system.
Chemoreceptors in reflexogenic zones of the vertebral and carotid arteries play a regulatory role in the cardiorespiratory interaction. Perfusion of these zones with lactic acid solution (0.5-3.0 mmol/liter) produced a reflex response, which was manifested in stimulation of external respiration and increase in systemic blood pressure. The reflex response of these systems was opposite after local administration of 0.3 M Tris-buffer. Correlation analysis revealed the role of afferentation from reflexogenic zones in the formation of a regulatory functional system for tissue gas exchange and acid-base balance.
Agadjanyin
N A
NA
Department of Normal Physiology, I. N. Ul'yanov Chuvash State University, Cheboksary, Russia.
Kupriyanov
S V
SV
D000818:Animals; D001794:Blood Pressure; D002415:Cats; D002628:Chemoreceptor Cells / Q000502:physiology*; D005260:Female; D006321:Heart / Q000502:physiology*; D008168:Lung; D008297:Male; D014711:Vertebral Artery / Q000502:physiology*