Pattern of filling in the pulmonary capillary bed
Autor: | R O Clarke, G. P. Kingaby, J W Evans, David A. Warrell, John B. West |
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Rok vydání: | 1972 |
Předmět: |
Pulmonary Circulation
Physiology In Vitro Techniques Models Biological Pulmonary capillary bed Dogs Alveolar air Physiology (medical) Freezing Pressure Medicine Animals Analysis of Variance Pulmonary gas pressures business.industry Venous pressure Alveolar septum Anatomy respiratory system Capillaries Perfusion Blood pressure Hematocrit Vascular Resistance business Venous Pressure |
Zdroj: | Journal of applied physiology. 32(3) |
ISSN: | 0021-8987 |
Popis: | Artificially ventilated and perfused dog lungs were rapidly frozen under various physiological conditions. In 2-micron-thick sections the number of red blood cells (RBCs) per 10-micron length of alveolar septum was counted. Under conditions in which alveolar pressure exceeded venous pressure, variation in RBC concentration within areas supplied by single arterioles accounted completely for variation between areas supplied by different arterioles. Except at very high perfusion pressures when venous pressure exceeded alveolar pressure, there was no significant correlation between RBC concentrations of pairs of adjacent septa. |
Databáze: | OpenAIRE |
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