39 6 



PRACTICAL ANATOMY. 



ments of the human vertebral column; that there are three regions where this 

 movement is specially pronounced: (i) the thoracic region; (2) the cervical 

 region ; (3) the region between the head and neck. 



Laminar portion of inter- 

 vertebral disc 



Anterior costo-central 

 or stellate ligament 



Costo-central synovial 

 sac 



Central pulpy portion of inter- 

 vertebral disc 



Middle costo-trans- 

 verse ligament 



Costo-transverse synovial sao 



Posterior oosto-transverse 

 ligament 



FIG. 276. HORIZONTAL SECTION THROUGH THE INTERVKRTEBRAL Disc AND RIBS. 



The interarticular 

 ligament 



The superior or anterior 

 costo-trausverae ligaments 



The stellate ligament 



FIG. 277. SHOWING THE ANTERIOR COMMON LIGAMENT OF THE SPINE, AND THE CONNECTION 



OF THE RIBS WITH THE VERTEBRA. 



The semispinalis dorsi, semispinalis colli, and complexus are accessory 

 to the multifidus spinse. 



Note the means to an end, then, in (i) the semispinalis dorsi (Fig. 285) ex- 

 tending from transverse processes to the spines in such a manner as to strengthen 

 the dorso-cervical junction. The semispinalis colli is likewise disposed to 



