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Autoregulation in external carotid artery branches in the baboon

L'autoregulation des branches arterielles de la carotide externe chez le babouin

Autoregulation der Äste der A. Carotis ext. beim Pavian

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Summary

The effects of changes in systemic blood pressure upon external carotid branches of the baboon have been measured by cerebral angiography. They have been shown to have an autoregulatory type of response down to a blood pressure of about 60 mmHg, below which they constrict.

Résumé

L'effet des variations de la pression arterielle systemique sur les branches de la carotide externe de babouin a été mesuré par angiographie. Une reponse autoregulatoire a été observée j'usqu'à une pression de 60 mmHg, au dessous de laquelle une vasoconstriction se produit.

Zusammenfassung

Der Einfluß von Blutdruckänderungen auf die A. carotis externa des Baboons wird untersucht, durch Messungen des Durchmessers der angiographisch dargestellten Arterie. Die A. carotis externa ist für die meisten Mammalier die Hauptarterie der Hirndurchblutung. Es zeigt sich, daß eine Vasodilatation dieser Arterie auftritt nach Blutdruckabfall bis zu Werten um 60 mmHg. Diese Ergebnisse deuten auf autoregulative Eigenschaften der A. carotis externa des Baboons hin. Hinweise auf autoregulatorische Eigenschaften der A. carotis externa des Menschen werden gemacht.

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Authors and Affiliations

  1. The Nuffield Institute of Comparative Medicine, The Zoological Society of London, Regent's Park, N.W.1, London

    G. du Boulay & M. Darling

  2. Lysholm Radiological Department, The National Hospital, Queen Square, WC1N 3BG, London, England

    G. du Boulay

Authors
  1. G. du Boulay
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  2. M. Darling
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du Boulay, G., Darling, M. Autoregulation in external carotid artery branches in the baboon. Neuroradiology 9, 129–132 (1975). https://doi.org/10.1007/BF00332960

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  • DOI: https://doi.org/10.1007/BF00332960

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