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Henry Gray (1825–1861).  Anatomy of the Human Body.  1918.
 
and articulates with the hamate, and one on its radial side, which articulates with the fourth metacarpal. On its ulnar side is a prominent tubercle for the insertion of the tendon of the Extensor carpi ulnaris. The dorsal surface of the body is divided by an oblique ridge, which extends from near the ulnar side of the base to the radial side of the head. The lateral part of this surface serves for the attachment of the fourth Interosseus dorsalis; the medial part is smooth, triangular, and covered by the Extensor tendons of the little finger.


FIG. 230– The second metacarpal. (Left.) (See enlarged image)



FIG. 231– The third metacarpal. (Left.) (See enlarged image)



FIG. 232– The fourth metacarpal. (Left.) (See enlarged image)



FIG. 233– The fifth metacarpal. (Left.) (See enlarged image)


Articulations.—Besides their phalangeal articulations, the metacarpal bones articulate as follows: the first with the greater multangular; the second with the greater multangular, lesser multangular, capitate and third metacarpal; the third with the capitate and second and fourth metacarpals; the fourth with the capitate, hamate, and third and fifth metacarpals; and the fifth with the hamate and fourth metacarpal.

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