what does each part of the lung model represent
Each part of a typical lung model usually represents one of the main structures involved in breathing: the trachea , bronchi , lungs , chest cavity , rib cage , and diaphragm. The exact labels can vary a little by model, but the airflow path and pressure changes stay the same.
Common parts
- Bottle or container : the chest cavity or thoracic space.
- Two balloons inside : the lungs.
- Y-shaped tube or straw : the trachea splitting into the bronchi.
- Rubber sheet or balloon at the bottom : the diaphragm.
- Bottle walls : the rib cage or chest wall.
How it works
When the diaphragm moves down , the space inside the chest model gets larger, pressure drops, and air flows in, making the balloons inflate. When the diaphragm moves up , the space gets smaller, pressure rises, and the balloons deflate.
Quick mapping
| Model part | What it represents |
|---|---|
| Container/bottle | Chest cavity |
| Balloons | Lungs |
| Tube/straw | Trachea and bronchi |
| Bottom rubber sheet | Diaphragm |
| Outer wall | Rib cage |
