The metacarpal bones have all the same segments:
Text by Antoine Micheau, MD - Copyright IMAIOS
- A proximal extremity (base) bearing an articular surface for the distal row of the carpal bones and additional facets towards its neighbours.
- A shaft (body) with a palmar and a dorsal surface, and medial and lateral borders.
- A distal extremity (head) with a trochlea that articulates with the proximal phalanx.