具有并流的毛细血管层中的氧气扩散。
Oxygen Diffusion from Capillary Layers with Concurrent Flow.
作者信息
Popel Aleksander S
机构信息
Department of Chemical Engineering, University of Arizona, Tucson, Arizona 85721 and Department of Physiology, College of Medicine, University of Arizona, Tucson, Arizona 85724.
出版信息
Math Biosci. 1980 Aug;50(3-4):171-193. doi: 10.1016/0025-5564(80)90035-8.
Oxygen transport from capillary layers with concurrent flow is considered for symmetric and asymmetric distributions of oxygen concentration between the layers. The analysis is based on the solution previously obtained by the author [1]. Solutions for the symmetric case are shown to be very close to the corresponding solutions of the Krogh cylinder model. Asymmetry in oxygen distribution is introduced systematically by considering different velocities of blood in the alternate capillary layers, different inlet capillary oxygen tensions, and different capillary hematocrits. It is shown that increase of the degree of asymmetry leads to diminution of the mean oxygen tension.
对于层间氧浓度的对称和非对称分布，考虑了具有并流的毛细血管层的氧传输。该分析基于作者先前获得的解[1]。结果表明，对称情况下的解与克勒格圆柱模型的相应解非常接近。通过考虑交替毛细血管层中不同的血流速度、不同的入口毛细血管氧分压和不同的毛细血管血细胞比容，系统地引入了氧分布的不对称性。结果表明，不对称程度的增加会导致平均氧分压降低。
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