92 



MAMMALIAN ANATOMY 



that of the body, thus forming only a small caudal inter vertebral 

 notch. Near the dorsal part of the caudal half of the lateral surface 

 is the pointed accessory process, which is directed dorsally and 

 toward the tail. It has a small dorsal surface which faces dorsally 

 and medially, and a larger ventral surface, continuous with the lateral 

 surface of the pedicle, which faces ventrally and laterally. The base 

 of the accessory process is connected by a faint ridge with the base 

 of the cephalic articular and mammillary processes. 



The laminae (Fig. 64) have a cephalo-caudal diameter equal to that 

 of the body. They are almost flat at the cephalic end, but slope 

 dorsally at the caudal end, and are produced into the caudal articular 



processes. 



FIG. 62. 



Neural Spine. 



Caudal Articular 

 Process. 



Edge of Caudal Ar- 

 ticular Surface. 



Accessory Process. 



Pedicle. 



Transverse Process. 



A LUMBAR VERTEBRA, POSTERIOR OR CAUDAL ASPECT. 



Each of the caudal articular processes (Fig. 62) is semicircular, 

 and its dorsal surface is strongly concave from side to side and less 

 strongly convex from the cephalic to the caudal end. The articular 

 surface is flat in the cephalo-caudal line, strongly convex from side 

 to side, and faces ventrally and laterally. Its cephalic part is sepa- 

 rated from the tip of the accessory process by a notch, which receives 

 the cephalic articular and mammillary processes of the fifth vertebra. 

 The two caudal articular processes are separated by a longitudinal 

 incision. 



The cephalic articular process rises boldly dorsally and slightly 

 laterally and toward the head, from the cephalic part of the edge 



