122 



THE SUPERIOR EXTREMITY 



the articulation on all sides. It is attached to the scapula 

 around the margin of the glenoid cavity, but is attached 

 directly to the bone only at the upper part ; elsewhere it 

 blends with the outer surface of the labrum glenoidale, which 

 is attached to the margin of the cavity for the purpose of 

 increasing its depth. Laterally the capsule is attached to 



Coraco-humeral ligament 



Superior gleno 

 humeral ligamen 



Middle gleno- 

 humeral ligament 



Inferior gleno- 

 humeral ligament 



N. musculo-cutaneus 



M. biceps brachii 



Infraspinatus bursa 



Labrum glenoidale 



N. ulnaris| | 



N. cutaneus antibrachii medialis | | 



A. axillaris | 



V. axillaris 



'. \ '. N. axillaris 

 || A. et v. circ. humeri 

 | N. radialis 

 N. medianus 



FIG. 52. Semi-diagrammatic representation of a dissection of a Sagittal 

 section through the Right Shoulder. The subscapular bursa is shown 

 connected with the cavity of the joint between the superior and middle 

 gleno-humeral bands of the articular capsule. 



the anatomical neck of the humerus and to the transverse 

 ligament of the humerus, which bridges across the top of the 

 intertubercular sulcus from the greater to the lesser tubercle. 

 The attachment of the upper part of the fibrous stratum to 

 the humerus is quite close to the articular surface of the 

 head, but the attachment of the lower part is some distance 

 ( 1 2-1 6 mm.) from the articular surface; consequently a con- 

 siderable part of the lower portion of the anatomical neck is 

 inside the fibrous stratum of the capsule and is covered by 



