Fisiologia respiratoria: Tensión superficial y elasticidad pulmonar rápido y fácil en 5 minutos

This video from a respiratory physiology class describes what surface tension is, where it occurs at the lung level in the respiratory system (in the airways and alveoli), and why, and finally, how it relates to strength. of elastic retraction of the lung that tends to collapse it and, therefore, favors expiration. The elasticity of the lung is key because it favors passive expiration, without energy expenditure. The function of the lung surfactant is to control this elastic retraction force of the lungs. I share the link of my channel:    / @mauriciogiuliodori