Physiology. 



Fit together two vertebras in their proper order and observe that : 

 (f) The openings at the sides, through which the spinal nerves pass, 

 are formed by notches, or grooves, in the two vertebras. 



Neural Arch 



Body 



Transverse Process 



....Spinous Process 



Neural Ring 

 Fig. 2. Upper View of Thoracic Vertebra. 



Demi-facet for Head of Rib 



Body... 



Anterior Articular 

 Process 



Facet for Tubercle of 

 Rib 



^Transverse Process 



Spinous Process 



Fig. 3. Left Side View of Thoracic Vertebra. 



(/) The two projections extending upward from the ring of one 

 vertebra fit against two projections extending downward from the other 

 vertebra. These are the anterior and posterior articular processes. 



The Spinal Column. The central part of the skeleton 

 is the backbone, or spinal column. As a whole it is a 



