THE VERTEBRAL COLUMN. 



facets. Thus from the tenth to the thirteenth thoracic vertebra 

 rotary motion is very Hmited, owing to the interlocking of the 

 articular processes. 



The Lumbar Vertebrae. Vertebrae lurabales (Fig. 5). — 

 The last thoracic vertebrae form the transition to the typical 

 lumbar vertebrce. These are larger than the thoracic vertebrae. 



The centra are of the form of the centra of the thoracic vertebrse, 

 and increase in length to the sixth, but the seventh is about 



They increase in breadth to the last. 



the length of the first. 



