348 



THORACIC VERTEBRA. 



(b) The holes in the vertebrae form a passage for the spinal 

 cord; 



(c) The middle process is the Spinous Process, and the 

 series of spinous processes form the ridge of the backbone ; 



Body 



Transverse Process 



Spinous Process 



Neural Ring 



Anterior View of Thoracic Vertebra, 



Demi-Facet for Head of Rib 



Body 



Anterior Articular 



Process 



Facet for Tubercl 

 of Rib 



Transverse Process 



Spinous Process 



Fig. 100. Left Side View of Thoracic Vertebra. 



(d) The two lateral processes are the Transverse Processes. 

 Fit together two vertebrae in their proper order and ob- 

 serve that : 



(e) The openings at the sides, through which the spinal 



