210 



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A. Muscles of the Back and Cervix. 



In tlio trapetitu of Man, a cervical and a dorsal portion can no longer !* distinguished. 

 Above, it ia attached to the superior occipital curved line ; below, it in fixed t 

 . \ti-riinl third of the upper border of the clavicle, and to the acroimou and acapulur .*piw. 



Fis,'. 107. 



FIRST, SECOND, A.VD PART OF THIUD LAVKU OF MUSCLES OF THE BACK OF MAX; 

 THE FIRST LAYER OCCUPIES THE RIGHT, THE SECOND THE LEFT HUH-:. 



1. Trapezius ; 2, Tcudinous ov;on, 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, Gluteus medius; 9, Glutei rnaximi ; 10, Levator anguli scapula? ; 

 11, Rhomboideus minor; 12, Rhomboideus major; 13, Spleniu.s 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 ; 10, Serratus posticus inferior; 17, Supra- 

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

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

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

 Obliquus internus abdominis. 



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

 mastoido-humernlia of quadrupeds. 



The great dorsal row-mblcH Hint of the Dog and Pig, its fleshy portion being very 

 developed ; it ia attached to the extertinl face of the four last ribs by miibcu' ./digit;tti<>ns, 

 and terminates on the border of the bicipital grow. 



