44 TOPOGRAPHICAL ANATOMY OF THE 



are the termination of the jugular veins and the commencement of the 



A. intercostalis suprema. 



A. colli transversa. 



M. longus colli. 

 Thoracic duct. -- 



(Esophagus. 



V. azygos. —--*■ 



First thoracic nerve. 



Trachea. 

 V. costocervicalis. 



N. vagus. ' \ \ 

 Vena cava cranialis. —"^ 



N. phrenicus. 

 Pericardium. 



<' 



M. longissimus 

 cervicis. 



A. cervicalis pro- 

 funda. 

 Eighth cervical 



nerve. 

 Seventh cervical 

 nerve. 



N. vagus et truncus 



symi)athicus. 

 A. carotis 



communis. 



A. cervicalis ascendens. 



"A. vertebralis. 

 Truncus omocervicalis. 



A. subclavia. 



A. thoracica externa. 

 A. thoracica interna. 



\ V. vertebralis. 



' Mediastinum. 



Fig. 22.— Dissection of the blood-vessels, &c., of the thorax, as seen from 



the right side. 



cranial vena cava. Lateral to the trunk are the vagus and recurrent 

 nerves. 



