88 



THE BONES OF THE UPPER LIMB. 



It consists of a triangular blade or body, supporting two large processes. The 

 surfaces of the body are anterior and posterior ; the borders superior, internal or 

 vertebral, and external or axillary ; the angles superior, inferior, and external ; the 

 last being the thickest part of the bone, and bearing the large articular surface, is 

 distinguished as the head, which is supported upon a neck. The processes are an 

 anterior, cvracoid process, and a posterior, the spine, which is produced into the 

 acromion. 



THAPE2IUS 



ERES MINOR 



Fig. 87. DORSAL VIEW OF RIGHT SCAPULA. (Drawn by T. W. P. Lawrence.) 



The anterior surface or venter, looking also considerably inwards, presents a 

 concavity, the sulscapular fossa, occupied by the subscapularis muscle, and marked 

 by three, or four oblique prominent lines, converging upwards and outwards, which 

 give attachment to the tendinous intersections of that muscle. Separated from this 

 concavity, are two smaller flat surfaces, one in front of the superior angle and 

 the other at the inferior angle ; and these, together with the line running close to 

 the vertebral border and uniting them, give attachment to the serratus magnus 

 muscle. 



The posterior surface or dorsum is divided by the spine into two unequal parts, 

 the upper of which is the supraspinous fossa, and the lower, the infraspinous fossa. 

 The supraspinous fossa is occupied by the supraspinatus muscle. The infraspinous 



