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252 Disturbances of Respiratory Function
Edward T. Naureckas / Julian Solway

	Figure 252-1  Pressure-volume curves of the isolated lung, isolated chest wall, combined respiratory system, inspiratory muscles, and expiratory muscles. FRC, functional residual capacity; RV, residual volume; TLC, total lung capacity.
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	Figure 252-2  Spirogram demonstrating a slow vital capacity maneuver and various lung volumes.
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	Figure 252-3  Luminal area versus transmural pressure relationship. Transmural pressure represents the pressure difference across the airway wall from inside to outside.
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	Figure 252-4  Flow-volume loops. A. Normal. B. Airflow obstruction. C. Fixed central airway obstruction. RV, residual volume; TLC, total lung capacity.
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	Figure 252-5  Influence of air vs oxygen breathing on mixed arterial oxygenation in shunt and ventilation/perfusion heterogeneity. Partial pressure of oxygen (mmHg) and oxygen saturations are shown for mixed venous blood, end capillary blood for normal versus affected alveoli, and for mixed...
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	Figure 252-6  Commonly seen abnormalities of pulmonary function (see text). Pulmonary function values are expressed as percent of normal predicted values, except for Raw, which is expressed as cmH2O/L/s (normal <2 cmH2O/L/s). The figures at the bottom of each...
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