212 



PRACTICAL ANATOMY. 



monary artery and the under surface of the arch of the aorta ; in the adult you 

 must find here in this place the fibrous remains of this fetal structure. 



The ascending vena cava passes through the caval opening in the dia- 

 phragm. You see it when you open the pericardium. Its length is about one- 

 half of an inch, above the diaphragm in the pericardium. 



Right common carotid 



artery 

 Right internal jugular 



RIGHT LYMPHATIC DUCT 



Iniifnniiwtr artery 



RKiHT PNEUMO- 



<;. \STR1C NERVE 



1'iiiht innominate vein 



Internal mammary vein 



Trunk of the pericnnliac 

 and f/n/mic veins 

 Vena cava superior 



Vena azygos major 



Vena azygos minor, cross- 

 ing spine to enter rena 

 azygos major 



Hepatic veins 



Vena cava inferior 



Right phrenic artery 

 Cveliac axis 



Right middle suprarenal 

 artery 



Right spermatic artery 

 Right spermatic vein 



Left common carotid 



artery 



LEFT PNEUMna AS- 

 TRIG NER VE 



THORACIC DUCT 



Ij",jt innominate vein 



Left subclavian artery 



Left superior intercostal 

 vein 



RECURRENT 

 LARYNGEAL 

 NER VE 



Vena azygos tertius 



(ESOPHAGUS 



Left upper azygos vein 



(Esophageal branches 

 from aorta 



Vena azygos minor 



THORACIC DUCT 



Left phrenic artery 



Left middle suprarenal 



artery 

 RECEPTACULUM CHYLI 



Superior mmi'Htei-ic 

 artery 



Lfft ascending hnnbdr 



vein 

 Left spermatic vessels 



Inferior mesenteric 

 artery 



FIG. 150. THE ARCH OF THE AORTA, THE THORACIC AORTA, AND THE ABDOMINAL AORTA, WITH 

 THE SUPERIOR AND INFERIOR VENA CAVA AND THE INNOMINATE AND AZYGOS VEINS. 



The descending vena cava is made up by the confluence of the right and 

 left brachio-cephalic or innominate veins; and the vena azygos major, the peri- 

 cardiac, thymic, and oesophageal veins are its subsequent tributaries. It returns 

 the blood to the right auricle of the heart from above the diaphragm. 



The brachio-cephalics right and left, also called the innominate veins 



