THE RADIUS 



81 



of the anterior surface is the bicipital tuberosity (Tuberositas radii), into which 

 the biceps tendon is inserted. The internal tuberosity is continuous with the pre- 

 ceding eminence, and furnishes attachment to the short part of the internal lateral 



BicipiUil 

 tuberosity 



^'. 



Proximal ' 

 external 

 (iiberosily 

 of radius 



Distal external 

 tuberosity of 

 railius 



Fig. 48. — Left R.\Dirs .\xd Ulna of Horse, Exter- 

 nal View. (After Schmaltz, Atlas d. Anat. d. 

 Pferdes.) 



Distal 



external 



tuberosity 



of radius 



Fossa 



Proximal 

 internal 

 tuberosity 

 of radius 



Distal 

 external 

 tuberosity 

 of radius 



Facet for ulnar 

 carpal 



Facet for radial 

 carpal 



Fig. 49. — Left Radius axd Ulna of Horse. Pos- 

 terior View. (After Schmaltz, Atlas d. Anat. 

 d. Pferdes.) 



ligament. The external tuberosity is more salient; it gives attachment to the 

 external lateral ligament and to the anterior and lateral extensor muscles of the 

 digit. 



The distal extremity is also compressed from before backward. It presents 



