Monday, January 24, 2011

A Model of The Human Respiratory System

 



Glass tube ---> Trachea
Ballons ---> Lung
Bell jar ---> Thoracic Cavity
Rubber sheet ---> Diaphragma
Y-tube ---> Bronchus







  1. When the rubber sheet is pulled down, the pressure inside the bell jar decreases. Air from outside enter the balloons
  2. When the rubber sheet is pushed up, the pressure inside the bell jar increases. Air is forced out of the balloons

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