The metatarsus or metatarsal bones are of five long bones in the foot located between the tarsal bones and the phalanges of the toes. The metatarsal bones are numbered from the medial side (side of big toe): the first, second, third, fourth, and fifth metatarsal.
Like metacarpals, they are dorsally convex long bones consisting of a shaft or body, a base, and a head.
The base of each metatarsal bone articulates with one or more of the tarsal bones at the tarsometatarsal joints [Lisfranc Joint]. Their bases also articulates with each others at the intermetatarsal joints.
- The first metatarsal articulates with the medial cuneiform, and to a small extent to the intermediate cuneiform.
- Second metatarsal articulates with all three cuneiforms.
- Third metatrsal with lateral cuneiform.
- Fourth metatarsal articulates with the lateral cuneiform and the cuboid.
- Fifth metacarpal articulates with the cuboid.
The head articulates with one of the first proximal phalanx at the metatarsophalangeal joints.