Anatomy And Physiology

Science, Live. "Diagram Of The Human Respiratory System (Infographic)."  Live Science . N. p., 2013. Web. 9 May 2019. "Meet The Lungs."  Khan Academy . N. p., 2019. Web. 9 May 2019. "How The Lungs Work | National Heart, Lung, And Blood Institute (NHLBI)."  Nhlbi.nih.gov . N. p., 2018. Web. 9 May 2019.

Respiratory Zones: passages where gas exchange takes place. Zones: Respiratory bronchioles, alveolar ducts, alveolar sacs, alveoli Conducting Zones: Transports air from outside of the body to the lower passages to where the gas exchange takes place. Conducting zone steps:  Nose, pharynx, larynx, trachea, primary bronchi, secondary bronchi, tertiary bronchi, terminal bronchioles