 the chemical and physical properties of serpentine and amphibole asbestos are considered in the context of their interaction with tissue of the tracheobronchial tree and lungs . in vitro studies in cultures of several types 
 are evaluated and work with the erythrocyte hemolysis system is reviewed . although fibers of the two major mineral types differ substantially , it is likely they are modified by secretions and membranes of cells after inhalation to the respiratory tract . 
 investigations using virgin asbestos might not provide an accurate picture of events in vitro.imagesfigure 1.figure 2.figure 3.figure 4.figure 5.figure 6 . 
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