Through immaculate visuals, this Introductory video provides a basic description of histology of respiratory system. Starting from the vestibules all the way to alveoli, it efficiently overviews the conducting and respiratory epithelium with their specialized cells. Timeline: 00:00 introduction 00:33 the conducting and respiratory zones 01:13 the nasal vestibules 01:46 cilia and respiratory epithelium 02:20 mucociliary escalator 02:41 pharynx 03:25 larynx and trachea 04:45 bronchi 05:39 respiratory bronchioles