This 1930s educational film provides a detailed exploration of the respiratory ... human anatomy and physiology. Beginning with the organs of respiration, it highlights the structure and function ...

It explains how the nose functions as an air passage that warms and filters incoming air, while the throat and epiglottis manage the flow of air and food. The film highlights the role of tonsils ...

The gas exchange system is made from key parts, each of which has a different function. Bronchus The trachea ... exchanged during breathing. Within the human lungs the alveoli provide an efficient ...