Third metacarpal bone
The third metacarpal bone (metacarpal bone of the middle finger) is a little smaller than the second.
|Third metacarpal bone|
Third metacarpal of the left hand (shown in red). Palmar view.
The left third metacarpal.
|Latin||Os metacarpale III|
|Anatomical terms of bone|
The dorsal aspect of its base presents on its radial side a pyramidal eminence, the styloid process, which extends upward behind the capitate; immediately distal to this is a rough surface for the attachment of the extensor carpi radialis brevis muscle.
The carpal articular facet is concave behind, flat in front, and articulates with the capitate.
The ossification process begins in the shaft during prenatal life, and in the head between 11th and 27th months.
- Balachandran, Ajay; Anooj Krishna; Moumitha Kartha; Libu G. K.; Liza John; Krishnan B (30 December 2013). "A Study of Ossification of heads of 2nd to 5th Metacarpals in Forensic Age Estimation in the Kerala Population" (PDF). Journal of Evolution of Medical and Dental Sciences. 2 (52): 10165–10171. Retrieved 26 December 2013.
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