PO2-dependent regulation of microvascular blood flow in skeletal muscle

被引：0

作者：

Shibata, M ^{[1
]}

Kawarada, A ^{[1
]}

Ando, J ^{[1
]}

Kamiya, A ^{[1
]}

Togawa, T ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Med, Dept Biomed Engn, Tokyo 1130033, Japan

来源：

PROCEEDINGS OF THE 23RD ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-4: BUILDING NEW BRIDGES AT THE FRONTIERS OF ENGINEERING AND MEDICINE | 2001年 / 23卷

关键词：

oxygen tension; capillary blood flow; skeletal muscle;

D O I：

暂无

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The pO(2)-dependent regulation of microvascular blood flow was evaluated in rabbit skeletal muscle in vivo. The tenuissimus muscle was prepared to observe the microcirculation. The mean red blood cell velocity and perfused capillary density at various tissue pO(2) levels were measured using an intravital video-microscope. Both velocity and density were significantly decreased as tissue pO(2) was elevated, but the relationship between capillary flow and tissue pO(2) was not a linear correlation. In addition, the critical pO(2) value effected on microvascular blood flow regulation may exist in the tissue pO(2) ranging from 30 to 50 mmHg, which might be detected in the region of arteriolar walls.

引用

页码：81 / 82

页数：2

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