290 



ELEMENTARY ANATOMY. 



[LESS. 



The splenius is placed obliquely in the neck, extending 

 from the spines of dorsal and cervical vertebrae to the trans- 

 verse processes of the upper cervical vertebras and to the 

 mastoid process : the latter insertion defines the splenius 

 capitis ; the former the splenius colli. 



Erector spines. Under this title is included a very large 

 and complex muscular mass occupying the groove which 

 exists on each side of the dorsum of the skeleton, between 



FIG. 267. MUSCLES OF THE BACK. 



On the left side the superficial muscles are shown. On the right side not only 

 are these removed, but the serratus posticus inferior and abdominal muscles 

 also, and the vertebral aponeurosis is cut short (below 12) to show the deepest 

 muscles of the back. 



' i, trapezius ; 2, latissimus dorsi ; 3, infra-spinatus and teres ; 4, deltoid raised 

 on the right side to show the infra-spinatus, (5) teres major, and (6) teres 

 minor ; 7, sterno-mastoid ; 8, splenius ; 9, levator anguli scapulae ; iq, rhom- 

 boideus ; n, external oblique; 12, vertebral aponeurosis (lying in the same 

 plane with the serrati postici) ; 13, spinalis dorsi; 14, longissimus dorsi ; 15, 

 sacro-lumbalis. 



the vertebral spinous processes and the most backwardly 

 projecting parts of the ribs. In anthropotomy it is divided 

 into a number of parts which here it will not be necessary to 



