68 



THE SKELETON OF THE CAT. 



side a wedge-shaped process, the styloid process (/), extends 

 distad. The distal surface of the end together with the lateral 

 surface of the styloid process form a concave articular cavity 

 {g) which fits against the scapholunar JDone. 



VmA 



K^-'; 



u 



K' ' 



n 



m 



wm 



/^ nr ^ ^/ 



Fig. 49. — Radius and Ui.na, Dorso- Fig. 50. — Radius and Ulna, Ventro- 

 lateral ViKW. mloial View. 



/, radius; //, ulna, a, heail of radius; /', neck; r, liicipital tuberosity; </, 

 articular circumference; e, facet for radial fossa of humerus;/', styloid process of 

 radius; g, facet for articulation of scapholunar bone; /i, semilunar (or great sigmoid) 

 notch of ulna; t, coronoid process; /, olecranon; i, area for insertion of brachialis 

 and clavobrachial muscles; /, rough area for attachment of interosseous membrane; 

 //I, styloid process of ulna. 



The dorsal surface of the distal end is marked by longi- 

 tudinal grooves for tendons, and its lateral or ulnar surface bears 

 a concave facet for articulation with the ulna. 



Ulna (//, Figs. 49 and 50). — The ulna is a long slender 



