Economy Lung Respiration Model
Product Number: SB48232
No longer avaliable
This item has been discontinued
Grade 5 and Up.An excellent way to demonstrate the breathing mechanism. Apparatus consists of a bell jar which represents the thoracic cavity, a rubber dam representing the diaphragm, and a Y-shaped tube representing the trachea and bronchial tubes. Connected to the bronchial tubes are two lung-shaped inflatables. The lungs inflate and deflate on working the rubber dam (diaphragm). Strong, lightweight plastic and rubber construction. 7 in. H x 4-1/2 in. dia.