70 



Bones of the Spine. 



Fovea costalis superior 



Fovea costalis 

 transversalis 



Vertebra 



thoracalis 



IX 



Fovea 



costalis -- 

 transversalis 



X 



Foramen 



inter- 

 vertebrale 



XI 



Processus 

 mamillaris 



Processus 

 accessorius 



XII 



Processus 

 [mamillaris 



Vertebra 



lumbalis 



I 



Processus 

 mamillaris 



Vertebra lumbalis 

 II 



88. Ninth thoracic to the 

 second lumbar vertebra, 



vertebra thoracalis IX 

 to vertebra lumbalis II, 



from the right and somewhat from behind. 



The lower two vertebrae 

 thoracales approach in many parti- 

 culars the form of the vertebrae lum- 

 bales, the twelfth thoracic vertebra 

 especially. The processus articulares 

 superiores of the latter are, like those 

 of the other thoracic vertebrae, usually 

 placed nearly fron tally; their processus 

 articulares inferiores on the contrary, 

 like those of the lumbar 

 vertebrae, nearly sagittally. 

 This change in the direc- 

 tion of the processus articu- 

 lares may occur even at the 

 eleventh thoracic vertebra. 

 Further, on the poste- 

 rior surface of the pro- 

 cessus transversi and arti- 

 culares superiores small 

 projections are present 

 which resemble in form 

 and position the processus 

 mamillares and accessorn 

 of the lumbar vertebrae; 

 these are usually distinctly 

 marked on the twelfth 

 thoracic vertebra, less so 

 on the eleventh and tenth. 

 The processus transversi 

 are short and directed 

 markedly backward. 



Processus transversus 

 Processus accessorius 

 Processus articularis inferior 



