FIGURES 272 AND 273 



272 Same, section 23. 



273 Same, section 24. 



1 Sympathetic nerve. 



3 Right precaval vein. 



6 Left azygos-precaval junction. 



8 Oesophagus. 



9 Trachea. 



15 Interazygos venous plexus. 



35 Thoracic duct, preazygos segment. 



36 Thoracic duct, azygos segment. 



