RESISTANCE TO OXYGEN-TRANSPORT IN CAPILLARIES RELATIVE TO THAT IN SURROUNDING TISSUE
RESISTANCE TO OXYGEN-TRANSPORT IN CAPILLARIES RELATIVE TO THAT IN SURROUNDING TISSUE
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DOI：
10.1016/0026-2862(77)90122-4
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发表时间：
1977-01-01
影响因子：
3.1
通讯作者：
HELLUMS, JD
中科院分区：
文献类型：
--
作者：
HELLUMS, JD
对血液中氧气在微循环中传输的数学分析要么将血液视为一个连续体，要么忽略了毛细血管中径向传输的阻力。给出了一种近似分析，其中红细胞被近似为填充毛细管腔的圆柱体，使得O2的传输是通过细胞内的径向扩散来实现的。毛细血管对O2转移的抵抗力明显高于先前报道，与周围组织的抵抗力大致相同。
Mathematical analysis of O2 transport from blood in the microcirculation have either treated the blood as a continuum or neglected the resistance to transport in the radial direction in the capillary. An approximate analysis is given in which the red cells are approximated as cylinders which fill the lumen of the capillary such that the O2 transport is by radial diffusion in the cell. The resistance to O2 transfer in the capillaries was significantly higher than previously reported and was of approximately equal importance to the resistance in the surrounding tissue.