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 ...

Pleural membranes Thin layers that reduce friction between the lungs and the inside of the chest wall during breathing Pleural fluid (Higher Tier) Fluid found in the pleural cavity (between the ...

Persistent dry mouth may be a sign of inflammation in your respiratory system. Learn how this connection works and how to ...

An injury that impairs or compromises your respiratory system can negatively affect the amount of oxygen or carbon dioxide in your blood. For instance, a spinal cord or brain injury can ...

Discover a study that explored the hypothesis that mucus transpiration contributes to airway inflammation and chronic ...