84, The Vertebral Column, 

 Columna vertebralis, side view. 



The vertebral column presents the fol- 

 lowing curves: in the cervical portion a 

 tolerably marked convexity anteriorly ; in 

 the dorsal region a well marked convexity 

 posteriorly; in the lumbar region a well 

 marked convexity anteriorly, and in the 

 sacral and coccygeal portions a convexity 

 posteriorly. The most marked, anterior convex 

 curve, is at the place where the lumbar 

 portion of the vertebral column joins with 

 the sacrum, where the last lumbar vertebra 

 forms the promontory, Promontorium. 



YD. 



AT, 



Heitzmann, Atlas. I. 



