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10 Cards in this Set
- Front
- Back
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partial pressure
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as well as solubility of gas
-determine rate of diffusion of each gas and gas exchange between blood and alveolus |
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henrys law
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at the air-water interface, the amount of gas that dissolves in water is determined by its solubility in water and its patial pressure in the air
-assuming constant temp- |
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factors effecting gas exchange
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-membrane thickness
-membrane SA -ventilation perfusion |
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membrane thickness
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5um thick
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membrane surface area
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100 ml blood in alveolar cappilaries, spread over 70m^2
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ventilation perfusion coupling
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area of good ventilation need good perfusion(vasodilation)
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concentration in arterial blood
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98% bound to hemoglobin
1.5 dissolved |
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binding to hemoglobin
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-each heme group has 4 globin chains that may bind to oxygen
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oxyhemoglobin
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is bound
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deoxyhemoglobin
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not bound
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