Lung Activity Model
$42.20 excl. GST
(Image shows the new model. x2 only in stock of the older model which is larger. First-in, first-served.)
This simple, yet effective apparatus consists of two sacs which represent the lungs, a rubber membrane which serves as the diaphragm and a clear plastic enclosure which models the chest cavity. By making the diaphragm relax and contract the students can see how the lungs are emptied and filled with air. Complete with Instruction Sheet. Size: 20x11cm DxH.