¿Cómo funciona el sistema respiratorio? (Animación)

This animation provides a detailed description of the human respiratory organs, including the lungs, trachea, and pleura. It describes the function of the alveoli (air sacs) and offers much other information about the respiratory system. Contents 00:00 Introduction 00:20 Composition of Air 00:47 Upper Respiratory System 01:05 Nasal Mucosa with Cilia 01:55 Swallowing Food with the Aid of the Epiglottis 02:20 Trachea and Lungs 02:50 Arteries and Veins of the Heart and Lungs 03:05 Bronchial Tree (Bronchial System) 04:21 Gas Exchange in the Alveoli 06:12 Diffusion of Oxygen and Carbon Dioxide 06:37 Costal and Diaphragmatic Breathing 10:00 Internal and External Pleura