FIGURE 153 

 153 Same, section 16. 



1 Sympathetic nerve. 



3 Right azygos vein, thoracic portion. 



6 Precardinal or precava, resp. azygos of left side. 



7 Aorta. 



8 Oesophagus. 



9 Trachea. 



10 Pulmonary artery. 



22 Vagus. 



36 Thoracic duct, azygos segment. 



37 Broncho-mediastinal duct! 



