568 



MAMMALIAN ANATOMY 



FIG. 440. 



Posterior Humeral Head of TRICEPS. 



ANCONEUS. 



Olecranon Process. 

 Scapular Head of TRICEPS 



Outer Humeral Head of TRICEPS. 



Greater Sigmoid Cavity. 



With Head of Radius. 



Lesser Sigmoid Cavity. 



Coronoid Process. 



Posterior Surface. 



FLEXOR PROFUNDUS DIQITORUM. 



External Border. . 



EXTENSOR OSSIS METACARP1 POLLICIS._ 



Articular Surf ace for Radius. 



ii'V 

 Ml \ 



U 





IU1 



EXTENSOR CARPI ULNARIS. 



Posterior Border. 



EXTENSOR INDIOIS. 



Shaft. 



Head. 



Articular Surface for Pisiform. 



Styloid Process. 



LEFT ULNA, OUTER OR RADIAL ASPECT. 



