Thorax 
Figure 4-29: Histology of lung, demonstrating small bronchus on the right and a 
small blood vessel on the left. (Toluidine blue, X93). 
Figure 4-30: Histology of lung at higher magnification, demonstrating close re- 
semblance of bronchiolar epithelium to tracheal epithelium. (Toluidine blue, X232). 
777 
