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Historical perspective of finger joint motion: the hand-me-downs of our predecessors. The Richard J. Smith Memorial Lecture.

Understanding the mechanics of human dexterity requires an appreciation of the kinetic chains that comprise the hand and the intricate interplay of muscles and ligaments that control its movements. Some of the salient contributions to this field are described from a personal point of view in the hope that this perspective will stimulate further understanding of this unique human tool.