Joints of the Upper Extremity. 



179 



Processus coracoideus 



Acromion (sawed off) 



Ligamentum coracohumerale 



Spina scapulae 



Collum 



anatomicum 



humeri 



Ligamentum 



transversum 



scapulae inferius 



Scapula 



Humerus - 



230. Right shoulder joint, articulatio humeri, 



from behind. 



(The acromion has been sawed off. Of the shoulder blade only the lateral portion has 



been drawn in.) 



Articulatio humeri (continued) (see also Fig. 229). The ligamentum coraco- 

 humerale (see also Fig. 229) is shown as an especial strengthening ligament. This 

 arises from the lateral border of the processus coracoideus below the ligamentum coraco- 

 acromiale, is there separated from the capsule by loose tissue, but then sinks into the 

 capsule and radiates out into its upper and posterior wall toward the tuberculum majus. 



In the anterior part of the capsular wall there are, in addition, several fibrous 

 bands, markedly variable in development; these are often described as special strengthening 

 ligaments. 



12* 



