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American Educational Products Lung Demonstration Apparatus

Relaxation and contraction illustrated.

$18.00 - $18.00


Material Plastic
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american educational products
Simple model demonstrates the mechanisms of breathing for students Lung replacement Rubber dam Each for $18.00
Description & Specifications


Material Plastic

This simple model demonstrates the mechanisms of breathing for students.

  • Shows how the lungs are emptied and filled with air by the relaxation and contraction of the diaphragm muscle
  • One or two balloons attached to a Y-tube simulate the lungs
  • The chest cavity is a half-gallon bell jar with open top and stout rubber sheet that acts as the diaphragm
  • As the diaphragm is pulled downward, the atmospheric pressure is lowered inside the chamber, causing the lungs to expand and take in air
  • When the diaphragm is released, the lungs deflate