The proximal surface (head) of the capitate is convex to fit with the concave surfaces of the scaphoid and lunate. The distal surface articulates with the third metacarpal and a small angle bears a facet for the fourth metacarpal. The lateral border is concave for the medial side of the second metacarpal. The medial border has a large facet for the hamate.
Carpals | Metacarpals | Phalanges | Arches | Bone and Joint Structure | Help | Hand Kinesiology
Lorie Richards and Janice Loudon, October 1997