THORACIC CAVITY 



21 



After the dissector has made himself thoroughly conversant 



Thoracic sym- 

 pathetic trunk 



Intercostal 

 vessels and nerve 



Vena azygos 



Pulmonary 

 artery 

 Eparteria 

 branch of 

 right 

 bronchus 

 Hyparterial 

 part of 

 bronchus 



Pulmonary 

 veins 



(Esophagu 



Ligamentum I 

 pulmonis - 

 (cut) 



Scalenus anterior 

 Brachial nerves 



Right subclavian artery 

 Right subclavian vein 



Right innominate vein 

 Internal mammary artery 

 Trachea 



Right vagus nerve 



Left innominate vein 



Ascending aorta 



Superior 

 vena cava 



Internal mam- 

 mary artery 

 Phrenic nerve 

 and accom- 

 panying artery 



Pericardium 

 and heart 



Diaphragm 



FIG. 10. The Right Pleural Chamber opened up by the removal of its lateral 

 wall. The lung has been taken away so as to expose the mediastinal 

 wall of the pleural chamber. Several of the structures in the medias- 

 tinal septum are seen shining through the mediastinal pleura. 

 II 2 b 



