Bones of the Upper Extremity. 



81 



Sartre Mtta,c, 

 sternal is 



101. The Right Clavicle, Clavicula, from before. 



Ltff. COSTO. 

 davicutare 



102. The Right Clavicle, Clavicula, from below. 



The collar-bone consists of an internal or sternal end, Extrcmi- 

 tas sternalis, whose saddelike articular facet articulates with the Incisura 

 clavicular is of the Sternum, an outer or aero mi al end, Extrcmitas acromialis, 

 articulated with the acromion ; and a middle piece. The clavicle is 

 curved like an italic /, so that the convexity is directed forwards at the 

 inner two thirds, the concavity at the outer third. 



Heitzmann, Atlas. I. 



11 



