Physiology Difference in trajectory between inspiratory loop and the expiratory loop in the curve is due to A Difference in alveolar pressure during inspiration and expiration B Difference in conc, of surfactant during inspiration and expiration C Difference in airway resistance during inspiration and expiration D Inspiration is active and expiration is passive 💡 Explanation Difference in trajectory between inspiratory loop and the expiratory loop in the curve is due to ✓ Correct Answer: B. Difference in conc, of surfactant during inspiration and expiration