|  | 
        
        | 
                        
                                |  Visceral pleura - histology slide
 |  | 
                        
                                |  Visceral pleura - histology slide
 |  | 
                        
                                |  Respiratory tract (labels) - illustration
 |  | 
                        
                                |  Respiratory system - illustration
 |  | 
        
        | 
                        
                                |  Normal airway - illustration
 |  | 
                        
                                |  Lungs - illustration
 |  | 
                        
                                |  Lung, rat
 |  | 
                        
                                |  Lung, rabbit - histology slide
 |  | 
        
        | 
                        
                                |  Lung, mouse - histology slide
 |  | 
                        
                                |  Lung, hamster - histology slide
 |  | 
                        
                                |  Lung, dog - histology slide
 |  | 
                        
                                |  Lung - SEM
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                |  |