206 PRACTICAL ANATOMY. 



SERRATUS MAGNUS. 



Origin By nine fleshy digitations from eight upper 

 ribs, about one and one-half inches from the articu- 

 lation of rib with costal cartilage. 



Insertion Posterior or vertebral border of scapula. 



Nerve Posterior thoracic of brachial plexus. 

 DELTOID. 



Origin External half of anterior border of clavicle, 

 outer border of acromion, lower border of spine of 

 scapula. 



Insertion Deltoid surface on outer side of humerus, 

 about its middle. 



Nerve Circumflex, from brachial plexus. 



SUBSCAPULAR. 



Origin Subscapular fossa. 



Insertion Lesser tuberosity of humerus. 



Nerve Subscapular, from brachial plexus. 



SUPRA-SPINATUS. 



Origin Supra-spinous fossa. 



Insertion Highest facet on great tuberosity of hu- 

 merus. 



Nerve Subscapular. 

 INFRA-SPINATUS. 



Origin Irifra-spinous fossa. 



Insertion Middle facet on tuberosity of humerus. 



Nerve Subscapular. 

 TERES MINOR. 



Origin Upper two-thirds of dorsal surface of axillary 

 border of scapula. 



Insertion Lowest facet on tuberosity of humerus. 



Nerve Circumflex. 

 TERES MAJOR. 



Origin Posterior surface of the inferior angle of the 

 scapula. 





