40 



TOPOGRAPHICAL ANATOMY OF THE 



A. transversa colli 

 Second rib. i 

 First thoracic sympathetic ganglion. ,' ; 



A. cervicalis profunda. 

 First thoracic nerve. 



Eighth cervical nerve. 

 A. vertebralis. 



A. intercostalis suprema. 



M. longissimus cervicis. 



Seventh cervical 



(Esophagus. - 

 M. scalenus. - 



A. carotis- 

 communis sinistra. 

 N. vagus et n. - 

 synipathicus. 



V. jugularis' 



sinistra. 



A. cervicalis ascendcn; 

 Truncus omocervic 

 ,A. transversa 

 A. subclav 



\. thoracica 



, M. longus colli. 



, CEsophagus. 



- Thoracic duct. 

 , Aorta. 



Trachea. 

 N. vagus. 

 Truncus 



brachiocephalicus. 

 N. recurrens. 



— Cardiac nerve. 

 ~-N. phrenicus. 



- Pericardium. 



Mediastinum. 

 Fig. 20. — Dissection of the vessels and nerves in the region of the entrance to the 



thorax, seen from the left. 



1 



