The Third Metatarsal Bone (os metatarsale III) articulates proximally, by means of a triangular smooth surface, with the third cuneiform; medially, by two facets, with the second metatarsal; and laterally, by a single facet, with the fourth metatarsal. This last facet is situated at the dorsal angle of the base.
See Metatarsal Bones for a description of the common characteristics of metatarsal bones.
The base articulates with the third cuneiform. The head with the 1st phalanx of third toe.