{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/69f53b5f9da4407e8c6fb844eef9b878\" frameborder=\"0\" width=\"1662\" height=\"1246\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1246,"width":1662,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1246,"thumbnail_width":1662,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/69f53b5f9da4407e8c6fb844eef9b878-2255a320929ebb6e.gif","duration":3127.467,"title":"Respiratory System Functions and Airway Anatomy","description":"This Loom provides an overview of the respiratory system, focusing on how ventilation and gas exchange work at different levels. It distinguishes pulmonary ventilation as breathing, external respiration at the alveoli where oxygen diffuses into blood and carbon dioxide into alveoli, internal respiration at the tissues, and notes that cellular respiration is the mitochondria-based process that uses oxygen to generate ATP. It then outlines the conducting versus respiratory zones, the upper versus lower respiratory tracts, and key air-tube structures from nose through trachea and bronchi to alveoli, including main bronchus differences and the role of the diaphragm via the phrenic nerve (C3 through C5)."}