Lung Apparatus

By: Science Enterprises

Part Number: 6713
Used to demonstrate how the lungs are emptied and filled with air by relaxation and contraction of the diaphragm muscle. -

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Plastic dome with balloons to represent lungs.
Used to demonstrate how the lungs are emptied and filled with air by relaxation and contraction of the diaphragm muscle.
Two balloons attached to a y-tube simulate the lungs.
The chest cavity is a one-half gallon plastic bell jar with open top and rubber sheet which acts as the diaphragm.
As the diaphragm is pulled down, the atmospheric pressure is lowered inside the chamber causing the lungs to expand and fill with air. When the diaphragm is released the lungs deflate.
Approximate size: 8" in diameter, 8" in height,