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 ...

Parts of the model represent different parts of the respiratory system as shown here. The model, which is air tight, represents the thorax, and air is only able to enter via the glass tube which ...

Respiratory system models are experimental systems that recreate aspects of human respiratory system development, function or disease. Animal models such as dog, rodent and pig can be used to ...

Respiration by living organisms can be investigated by carrying out experiments to show the production of carbon dioxide and heat. Limewater can be used to detect carbon dioxide. Breathing in ...