Human lungs, working model

Function and Applications

Model of how the human lung works.

Expansion of the lung by enlargment of the chest cavity. In the bell-shaped model two balloons are filled resp. emptied by moving a membrane which represents the diaphragm.

Benefits

• Very practical for demonstrating how the human lung works
• Easy to use, simple design

Equipment and Technical Data

The model consists of a transparent bell with a height of 30 cm, a holder for two ballons and a durable membrane.