Metatarsal bones

[2] The five metatarsals are dorsal convex long bones consisting of a shaft or body, a base (proximally), and a head (distally).

[3] The body is prismoid in form, tapers gradually from the tarsal to the phalangeal extremity, and is curved longitudinally, so as to be concave below, slightly convex above.

The head or distal extremity presents a convex articular surface, oblong from above downward, and extending farther backward below than above.

Their bases also articulate with each other at the intermetatarsal joints The metatarsal bones are often broken by association football (soccer) players.

[8] Stress fractures are thought to account for 16% of injuries related to sports participation, and the metatarsals are the bones most often involved.

Bones of the right foot. Dorsal surface. Metatarsus shown in yellow.
Muscle attachments (seen from above)
Muscle attachments (seen from below)
Fracture of the base of the 5th metatarsal