104 



THE BONES OF THE UPPER LIMB 



The carpal extremity presents distinctive peculiarities in each metacarpal bone. 

 That of the first has a saddle-shaped articular surface, concave from before back- 

 wards, and convex from side to side, for articulation with the trapezium, and 



Fig. 109. FIRST METACARPAL 



BONE OF THE RIGHT HAND : 

 PALMAR ASPECT. (G. D. T. 



Fig. 1 10. SECOND METACARPAL 



BONK OF THE RIGHT HAND : 

 PALMAR ASPECT. (G. D. T. ) 



STVL01D PHOC. 



Fig. 111. THIRD METACARPAL 



BONE OF THE RIGHT HAND, 

 FROM BEHIND. (G. D. T.) 



Fig. 112. FOURTH METACARPAL BONE OF 



THE RIGHT HAND : RADIAL SIDE. 



(G. D. T. 



Fig. 113. FIFTH METACARPAL BONE OP 



THE RIGHT HAND I DORSAL ASIECT. 



(G. D. T.) 



externally a slight prominence, to which the extensor ossis metacarpi pollicis is 

 attached. The second is notched to receive the trapezoid bone ; on the 

 radial side is a small facet for the trapezium ; the more prominent ulnar lip 

 articulates superiorly by a narrow surface with the os magnum, and internally with 

 the third metacarpal bone ; and posteriorly, close to the articulation with the 

 trapezium, is a rounded mark where the extensor carpi radialis longior is insei ted. 



