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was £19.99
100230
This Lung Function Model shows how the lungs are emptied and filled withair by relaxation and contraction of the diaphragm muscle! Two balloonsattached to a Y-tube simulate the lungs. The chest cavity is represented bya plastic bell jar with an open top and stout rubber sheet which acts as adiaphragm. As the diaphragm is pulled downward, the atmospheric pressureis lowered inside the chamber causing the lungs to expand, taking in air.When the diaphragm is released, the lungs deflate. Size 9” x 4.5”.
*PLEASE NOTE WE ONLY SUPPLY CHEMICALS TO EDUCATIONAL ESTABLISHMENTS *
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