On the lateral part of the plantar surface there is a rough oval prominence, or tuberosity, for the insertion of the tendon of the fibularis longus.

[2] Its proximal articular surface is large and kidney-shaped; its circumference is grooved, for the tarsometatarsal ligaments, and medially gives insertion to part of the tendon of the tibialis anterior.

Three muscles attach to the first metatarsal bone: the tibialis anterior, fibularis longus and first dorsal interosseus.

The lateral part of the first dorsal interosseus muscle originates from the medial side of the bone.

[4] This article incorporates text in the public domain from page 272 of the 20th edition of Gray's Anatomy (1918)