Working model of the lung: Balloons in a bell jar over a diaphragm.

Working model of the lungs: Balloons in a bell jar over a diaphragm. Push on diaphragm and 'lungs' deflate. Pull on diaphragm and 'lungs' inflate. FLUID STATICS.
UCB Index: 
C+30+55
Demo Diagram: 

UCB Taxonomy:

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