24 



ANATOMY OF THE R.\BBIT 



the cranial margin of the pedicle of the next vertebra caudad, 

 forms the intervertebral foramina through which the vertebral 

 nerves pass. The cranial, or anterior, end of a mammalian 



Fig. 5. — A, fifth cervical vertebra, cranial view, and B, Axis, right latera 

 view. AA, anterior articulating process; AS, articulating surface of AA; 

 C, centriun (body); CE, costal element of TP; LM, lamina; NC, neural canal; 

 OP, odontoid process (dens); P, pedicle; PA, posterior articulating process; 

 SP, spinous process; TE, transverse element of TP; TP, transverse process; 

 V, vertebrarterial canal (transverse foramen). 



vertebra can be distinguished from the caudal end by the fact 

 that the articulating surfaces of the anterior articular processes 

 look dorsomediad while those of the posterior articular processes 

 look ventrolaterad. 



Fig. 6. — Fifth thoracic vertebra, right side. AAS, anterior articulating 

 surface of anterior articulating process; C, centrum; CDF, costal demifacet; 

 IN, intervertebral notch; PAS, posterior articulating surface of posterior articu- 

 lating process; SP, spinous process; TAF, tubercular articulating facet. 



Any one of the five sections of the vertebral column has one, 

 or more, vertebrae which is characteristic of that particular 

 group, while the others of that group show a marked tendency 



