This 1930s educational film provides a detailed exploration of the respiratory and excretory systems, combining live-action demonstrations, animations, and intertitles to illustrate human anatomy ...

Human Respiratory System: Anatomy, Cilia, and Mucus Membrane Function. Posted: May 21, 2025 ... ‘Dragon Man’ DNA revelation puts a face to a mysterious group of ancient humans.

China pilots monitoring system for pneumonia of unknown origin amid rising respiratory infections, including human metapneumovirus, in winter and spring.