Pflügers Archiv

, Volume 393, Issue 1, pp 118–120

Direct measurements of oxygen tension at the surface of arterioles, capillaries and venules of the cerebral cortex

  • K. P. Ivanov
  • A. N. Derry
  • E. P. Vovenko
  • M. O. Samoilov
  • D. G. Semionov
Heart, Circulation, Respiration and Blood; Environmental and Exercise Physiology Letters and Notes

Abstract

Direct pO2 measurements were made at the surface of arterioles, capillaries, and venules of rabbit brain cortex. The results indicate that a considerable amount of oxygen diffuses through the arteriolar and precapillary wall. Therefore, the arterial blood that reaches the capillaries already has low pO2 (43±3 mm Hg and about 75%–70% of the blood oxygen capacity).

Key words

Arteriolar and precapillary O2 diffusion capillary pO2 brain cortex microvessels 

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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • K. P. Ivanov
    • 1
  • A. N. Derry
    • 1
  • E. P. Vovenko
    • 1
  • M. O. Samoilov
    • 1
  • D. G. Semionov
    • 1
  1. 1.Pavlov Institute of PhysiologyUSSR Academy of ScienceLeningradUSSR

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