Abstract
Using a physical model of convenient macroscopic scale with blood simulated by gelatin pellets in a silicone fluid, the red cell distribution in the pulmonary alveoli was studied. Information pertaining to the flow characteristics of blood at the bifurcation lines of the inter alveolar septa was obtained. The vascular space in each interalveolar septa is said to be a sheet. The results show that when a sheet branches into two daughter sheets, the hematocrits in the daughter sheets depend on the difference of velocity of flow in these branches.
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