Fourth metacarpal bone

Bone: Fourth metacarpal bone
The fourth metacarpal. (Left.)
Bones of the left hand. Dorsal surface.
Latin	ossa metacarpalia IV
Gray's	subject #55 228
MeSH	Metacarpal+Bones

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.

See also

• metacarpus
• First metacarpal bone
• Second metacarpal bone
• Third metacarpal bone
• Fifth metacarpal bone

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.