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Intravascular Inhomogeneous Distribution of Oxygen in Arterioles of Rat Cremaster Muscle

Jpn J Physiol Vol.52, No.6 pp.579-583
Hirosuke Kobayashi, Naosada Takizawa, Kazuo Tanishita
Abstract: Previously, cross-sectional oxygen distribution in microvessels was assumed to be homogeneous. The oxygen profile in the arterioles of rat cremaster muscle was measured using microspectrophotometry and a PO2 microelectrode, showing a drop in SO2 as well as PO2 close to the vascular wall with a flat PO2 profile in the perivascular tissue.

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Department of Medicine, School of Medicine, Kitasato University, Sagamihara, 228-8555 Japan. hiro@kitasato-u.ac.jp
Copyright© 2007 by The Physiological Society of Japan