Fourth metacarpal bone

Fourth metacarpal bone
Fourth metacarpal of the left hand (shown in red). Palmar view.
The fourth metacarpal. (Left.)
Details
Identifiers
Latinos metacarpale IV
FMA23902
Anatomical terms of bone

The fourth metacarpal bone (metacarpal bone of the ring finger) is shorter and smaller than the third.

The base is small and quadrilateral; its superior surface presents two facets, a large one medially for articulation with the hamate, and a small one laterally for the capitate.

On the radial side are two oval facets, for articulation with the third metacarpal; and on the ulnar side a single concave facet, for the fifth metacarpal.