Ultrastructure of the Tracheobronchial Epithelium of the Normal and Formaldehyde-exposed Guinea-pig

the present work aimed to study the normal light and electron microscopic structure of the tracheobronchial epithelium of adult male guinea pig and the possible changes produced in this epithelium after exposure to formaldehyde gas.in this study,pieces of the trachea and main bronchi of twenty non-exposed and twenty formaldehyde-exposed adult male guinea pigs, were processed, examined and photographed by means of light and electron microscopy.