Non-elastic resistance ■ Airway resistance气道阻力:80~90% Is caused by friction among gas molecules and between gas molecules and the inner wall of airway Ro1/r4 ■ Inertial resistance惯性阻力 Viscous resistance粘滞阻力: The effect of surface friction between a particle and a liquid when the particle moves through the liquidNon-elastic resistance ◼ Airway resistance气道阻力: 80~90% – Is caused by friction among gas molecules and between gas molecules and the inner wall of airway. – R1/r4 ◼ Inertial resistance惯性阻力 ◼ Viscous resistance粘滞阻力: The effect of surface friction between a particle and a liquid when the particle moves through the liquid