The presence of surfactant surface tension in the lungs, which the work of breathing. long compliance A. Decreases; Decreases; Decreases B. Increases; Increases; Decreases C. Decreases; Increases; Decreases D. Increases; Decreases; Decreases E. Decreases; Increases; Increases 57. Which of the following is an event that must occur to cause airflow out of the lungs? A. Por decreases B. Alveolar volume increases C. Por decreases D. Contraction of the diaphragm and external intercostal muscles E. PALV decreases

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