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MUSCLES OF THE BACK. 

 Fig. 90.* 



* The first and second and part of the third layer of muscles of the back ; the 

 first layer being shewn upon the right, and the second on the left side. 1. The 

 trapezius muscle. 2. The tendinous portion which, with a corresponding por- 

 tion in the opposite muscle, forms the tendinous ellipse on the back of the neck. 

 :i. The acromion process and spine of the scapula. 4. The latissimus dorsi 

 muscle. 5. The deltoid. 6. The muscles of the dorsum of the scapula, infra- 

 spinatus, tcres minor, and teres major. 7- The external oblique muscle. 8. 

 The gluteus medius. Q. The glutei maximi. 10. The levator anguli scapulae. 

 11. The rhomboideus minor. 12 The rhomboideus major. 13. The splenius 

 rapitis ; the muscle immediately above, and overlaid by the splenius. is the 

 complexus. 14. The splenius colli, only partially seen ; the common origin of 



