Abstract
When the oxygen pressure of the venous blood of the brain decreases below 20 Torr, the O2 supply of the human brain becomes so insufficient that unconsciousness occurs [1], although at 20 Torr the blood still contains about one-third of the arterial O2 concentration. However, because of its low oxygen pressure, this amount of oxygen is obviously useless for the O2 supply. Opitz and Schneider [2] took these results as a sign for the brain tissue oxygen being mainly transported by diffusion and reported model calculations using Krogh’s model of tissue oxygen supply.
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© 1988 Springer-Verlag Tokyo
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Lübbers, D.W. (1988). Oxygen Delivery and Microcirculation in the Brain. In: Manabe, H., Zweifach, B.W., Messmer, K. (eds) Microcirculation in Circulatory Disorders. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68078-9_4
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DOI: https://doi.org/10.1007/978-4-431-68078-9_4
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