39 6 



PRACTICAL ANA TOM}. 



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

 movement is specially pronounced: (i) the tlioracic region; (2) the ccrrical 

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



Anterior costo-central 

 or stellate ligament 



Costo-central synovial 

 sac 



Laminar portion of inter- 

 vertebral disc 



Central pulpy portion of inter- 

 vertebral disc 



Middle costo-trana- 

 verse ligament 



Costo-transverse synovial sac 



Posterior costo-transverse 

 ligament 



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



The interartioular 

 ligament 



The superior or anterior 

 costo-transverse ligament! 



The stellate ligament 



FIG. 277. SIIOWIM; THE ANTERIOR COMMON LICAMI.M <>i mi MMNE, AND mi ( > >.\ SECTION 



OF THE RlBS WITH 1111 \KRTEBR>E. 



The semispinalis dorsi, semispinalis colli, and complexus are accessory 

 to the multifulus spin;r. 



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-rervical junction. The scinispinalis colli is likewise disposed to 



