The film discusses the anatomical and functional significance of the nose, throat, and ears from a medical perspective. It explains how the nose functions as an air passage that warms and filters ...

Breathing The membranes and cartilages that make up the larynx protect the lower respiratory tract. The epiglottis and vestibular folds seal off the larynx during swallowing.

The respiratory system is the organs and other parts of your body involved in breathing, when you exchange oxygen and carbon dioxide. All the cells in your body need oxygen to work.

The respiratory system “conditions” the air in several ways. First, it raises the temperature of cool air to body temperature, or it cools hot air to body temperature.