THE METACARPAL BONES. 



315 



finger. The distal eyid or head has a rounded articular surface projecting to the 

 pahnar side, while it does not rise above the level of the dorsum. Both on the palmar 

 and dorsal aspects, but especially on the former, its angles are produced backward, 

 and the whole surface encroaches a little more on the palmar side, where it is de- 

 cidedly broader than on the back. A tubercle exists on each side where the diverging 



Fig. 338. 



PISIFORM 



Ext. carpi ulnar is 



Styloid process -# 



Ext. carpi rad. long. 

 Ext. carpi rad. brev 



— Ext. brev 



THIRD PHALANX 



Bones of right hand, dorsal aspect. 



lines of the dorsum end, with a depression below it on the side of the head. The lat- 

 eral ligaments*^spring from both tubercle and depression. The nutrient forajnina, 

 excepting that of the first metatarsal, are recurrent, running towards the proximal end. 

 Peculiarities of the Different Metacarpals. — The first metacarpal is 

 shortest, the second longest, from which the remaining ones decrease in length 

 from without inward. The chief distinguishing marks are on the bases. 



