THORAX 



on both sides, the dissectors should study the sympathetic 

 trunks and their branches and communications. 



Thyreoid gland 



Left common carotid artery 



M. scalenus anterior 



Left subclavian artery 



Left subclavian vei: 



First rib 

 Left innominate vein 



Left common carotid artery 



Left subclavian artery 



Left phrenic nerve 



Left vagus nerve- 

 Cut edge of pleura- 

 Cut edge of peri- 

 cardium and pleura "i 



Pulmonary artery 



Conus arteri- 

 osus of right -- 



ventricle 



Interventricular 



branch of left 



coronary artery 



Cut edge of 

 pleura 



Cut edge of 

 pericardium 



Left ventricle 



Brachlal plexus 



--Thoracic duct 

 ..First left aortic 



intercostal artery 

 -CEsophagus 



-Sympathetic trunk 



Left superior 

 intercostal vein 

 -Arch of aorta 



Left pulmonary artery 



Upper left 

 pulmonary vein 



- Left bronchus 



Left auricle (O.T. 

 auricular appendage) 

 Lower left 

 pulmonary vein 



Circumflex branch 

 of left coronary 

 artery 



.Greater splanchnic 

 nerve 



"Diaphragm 



FIG. 14. Dissection of Thorax from left side showing the constituent parts 

 of the superior, middle and posterior mediastina. 



The Truncus Sympathicus. The thoracic portion of the 

 sympathetic trunk on each side is continuous above with the 



