| Popis: |
In modelling O2 transport to tissue, the capillary is often considered as a uniform oxygen source. Nevertheless, almost all the oxygen is supplied from the hemoglobin packed in single erythrocytes. Few literature models handle this particulate nature of blood O2 supply, and even fewer consider the consequences in a tissue pO2 model. Then, these particulate models are often too complicated or too laborious to be applied on large portions of tissue or on many tissue cases, as is needed for correct judgement of tissue oxygenation, e.g., as pO2 histograms. For a recent overview, see Popel (1989). Here, the simplest way of representing O2, sources, the point-like source, is worked out for handling erythrocytic O2 supply, and the consequences for tissue O2 considered referring to the simple basic configuration of the Krogh/Kety cylinder model. |
