Fifth metacarpal bone Fifth metacarpal bone The fifth metacarpal bone (metacarpal bone of the little finger or pinky finger) is the most medial and second-shortest of the metacarpal bones. It presents on its base one facet on its superior surface, which is concavo-convex 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 muscle. The dorsal surface of the body is divided by an oblique ridge, which extends from near the ulnar side of the base to
Bertram A. Bone floating reserve force, and Bone did not see combat. Colonel Bone was appointed officer in Charge of the Ordnance Section, Service Command Fleet Marine Force, Pacific under Major General Earl C. Long. In this capacity, Bone was co-responsible for the supply, salvage, evacuation, construction, personnel management, quartering and sanitation needs of all FMFPac units and other marine units in its area. He was ordered back to the States in May 1946 and following the brief leave home, he was appointed commanding officer of the Recruit Depot within Marine Corps Base San Diego under Major General Leo D. Hermle. In this