THE MUSCULAR SYSTEM 



205 



be postponed until later when both dorsal and ventral caudal 

 muscles will be considered together. 



The dorsal axial muscles are much more restricted in ex- 

 tent than are the ventral ones, and are mainly confined to the 



longissimus capitis 

 [trachelo-mastoid] 



ilio-costalis oervicis 

 [cervicalLs ascendens] 



ilio-costalis dorsi 

 m. ace ess oriiis ad] 

 sacro-lumbakml 



ilio-costalis lumborara. 

 sacro- lumbalis ] 



Fitf. 53. Muscles .of the human back. 



The superficial layers belonging to the appendicular system have been removed. 

 Upon the right are shown the three portions of the ilio-costalis system externally, 

 and within this the longissimus dorsi. Upon the left below is the multifidus; and 

 above, the remainder of the longissimus system. 



