THE CARPUS 



223 



and gives attachment to the transverse carpal ligament and sometimes origin to 

 a few fibers of the Abductor pollicis brevis. The lateral surface is rough and narrow, 

 and gives attachment to the radial collateral ligament of the wrist. The medial 

 surface presents two articular facets; of these, the superior or smaller is flattened 

 of semilunar form, and articulates with the lunate bone; the inferior or larger is 

 concave, forming with the lunate a concavity for the head of the capitate bone. 



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***M*%^, . .4 *&~\f. 



EXT. DIGITORUJ] 



COMMUNIS AND 



EXT. INDICES 



PROPRIUS, 



FIQ. 220. Bones of the left hand. Dorsal surface 



