THORACIC AORTA 

 Fig. 361.— Schp:me of the Thoracic Aorta. (Walsliara.) 



547 



1. At level of fifth 

 thoracic vertebra 



Intercostal artery 

 Intercostal vein 



Vena azygos major 



THORACIC DUCT 



(ESOPHAGEAL PLEXUS OF 

 RIGHT PXEUMOGASTRIC 

 y£R VE 



(ESOPHAGUS 

 (ESOPHAGEAL PLEXUS OF 

 L EFT PXE UMO GA STRIC 

 XER VE 



2. At level of seventh 

 thoracic vertebra. 



Intercostal artery 

 Intercostal vein 



Vena azygos major 



THORACIC DUCT 



PLEURA 



LUNG 



RIGHT (ESOPHAGEAL 



PLEXUS 



LEFT (ESOPHAGEAL 



PLEXUS 



3. At level of ninth 

 thoracic vertebra. 



Intercostal artery 

 Intercostal vein 



Vena azygos major 



THORACIC DUCT 



Intercostal vein 

 Intercostal artery 



Left upper azygos vein 



Intercostal vein 

 Intercostal artery 



PLEURA 



LUNG 



Vena azygos minor 



RIGHT PXEUMOGASTRIC 

 XER VE 

 - ISDPHAGUS 



LEFT PXEU.VOGASTRIC 

 XER VE 



