210 TSE MUSCLES. 



A. Muscles of the Back and Cervix. 

 In the trapezius of Man, a cervical and a dorsal portion can no longer be distinguiahed. 

 Above, it is attached to the superior occipital curved line ; below, it is nxea to ttie 

 external third of the upper border of the clavicle, and to the acromion and scapular spme. 



Fig. 107. 



rmST, SECOND, AND PART OP THIED LAYER OF MUSCLES OP THE BACK OF MAK; 

 THE FIRST LATER OOC0PIE3 THE RIGHT, THE SECOND THE LEFT SIDE. 



1, Trapezius ; 2, Tendinous portion, forming, with a corresponding part of the 

 opposite muscle, the tendinous ellipse on the back of the neck ; 3, Acromion 

 process and spine of scapula ; 4, Latissimus dorsi ; 5, Deltoid ; 6, Muscles of 

 dorsum of the scapula : infraspinatus, teres minor, and teres major ; 7, Obliquus 

 externus ; 8, Ghiteus medius ; 9, Glutei maximi ; 10, Levator anguli scapulse ; 

 11, Rhomboidcus minor; 12, Rhomboideus major; 13, Splenius capitis, overlying 

 the splenius, above ; 14, Splenius colli, partially seen : the common origin of the 

 splenius is attached to the spinous processes below the origin of the rhomboideus 

 major; 15, Vertebral aponeurosis; 16, Serratus posticus inferior; 17, Supra- 

 spinatus; 18, Infraspinatus; 19, Teres minor; 20, Teres major; 21, Long head 

 of triceps, passing between teres minor and maior to the arm ; 22, Serratus 

 magnus, proceeding forwards from its origin at the base of the scapula; 23, 

 Obliquus internus abdominis. 



The fibres of the trapezius which are fixed into the clavicle, represent a portion of the 

 masfoido-hmneralis f)f quadrapeds. 



The great dorsal resembles that of the Dog and Pig, its fleshy portion being very 

 developed ; it is attached to the external face of the four last ribs by muscular digitations, 

 and terminates on the border of the bicipital groove. 



