PSL301H1 Lecture Notes - Lecture 16: Congenital Heart Defect, Carbonic Anhydrase, Vapor Pressure
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PSL301H1 Full Course Notes
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What is high hematocrit a symptom of: atmosphere and lungs, lungs and blood, blood and cells, 78% n2, 21% o2, 1% co2 and other gases. Total atmospheric pressure = sum of all partial pressures (fractional concentration x total pressure) Yes, with the help of waters vapour pressure. Difference in atrial pressures (always down the gradient) opposite happens with co2 (high pp in tissues and lower in veins) It has poor solubility in water co2 has higher solubility however (20 fold) Gas transfer = (k x partial pressure gradient)/wall thickness where k = solubility of gas in alveolar membrane. Inflammation of airways (bronchioles and alveoli), ventilation perfusion imbalance, alveolar-capillary membrane changes. Lowers partial pressure of o2 in alveoli because of the destruction and reduction of surface area. Lowers partial pressure of gas in blood because of thickened alveolar membrane. Increases diffusion distance because of build up of fluid in interstitial space.
