FIG. 51. A view of the skeleton of the region of the shoulder seen from above, in which the muscles, vessels, 

 etc., have been put in position to show their relations to the bones. The humerus is somewhat inverted, 

 and the Supraspinatus has thus come well under cover of the outer end of the clavicle : observe that 

 the subacromial bursa might also reach this bone if it were a little larger. Insertion of Supraspinatu-i 

 is beyond the acromion and therefore under Deltoid, and the bursa covering it becomes the subdeltoid 

 bursa. Subscapularis and Serratus magnus are seen, with the axillary space between them : evidently 

 this space is continuous with the posterior triangle of the neck behind the axillary sheath. Capsulr 

 of shoulder -joint is not shown : it would, of course, be deep to the tendons. Attachments of Trapezius 

 mid Deltoid indicated, from which the deep relations of these muscles near the bones can be appreciated. 



