68 



ELEMENTS OF MAMMALIAN ANATOMY. 



From the lower part of the spine project the acromion 

 and metucronn'on processes. The subscapular fossa occu- 

 pies the entire inner or mesal surface. 



* <?/ 



^J 



FIG. 30. LATERAL OR OUTER ASPECT OF THE SCAPULA. 



ac, Acromion process ; ax, axillary border ; c, coracoid process ; gl, glenoid 

 cavity ; m, metacromion process ; sc, suprascapular notch ; sp, spine ; 

 sup. fos, supraspinous fossa ; vr, vertebral border ; n, neck. 



A slight constriction between the base of the spine and 

 the margin of the glenoid cavity is termed the neck. 

 From the cephalic side of the latter the coracoid process 



curves mesad. 



The clavicle is a slender 

 curved bone, about one inch 

 long, imbedded in the mus- 

 cle between the manubrium 

 and the coracoid process 

 (Fig. 21). It does not ar- 

 ticulate with any bone, but 



is held in place by the cephalohumeral and cleidomastoid 

 muscles (Fig. 48). 



The shoulder girdle varies somewhat among the Mam- 



FIG. 31. CAUDAL ASPECT OF LEFT 



CLAVICLE. 

 />, Mesal end ; a, lateral end. 



