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The author of this encyclopedia of the hand from the viewpoint of the internist attributes the development of our hand to the upright gait that liberated the hand from weight-bearing and ambulation. The discussion of the principal creases of the palm of the hand also manifests the author's simplified concept of developmental history. He states that until recently the prevalent belief was that the creases in the palm are due to the motion of the fingers but this concept is not tenable since we now know that the creases start to develop before finger motion comes into play. That the individual parts develop not from use but according to a design that conceives the totality of the individuum to be formed remains one of the most arresting aspects of developmental history. The chapter on the constitutional types of the hand is interesting and speculative. There, although we find the "elementary"
Die Hand des Kranken. JAMA. 1956;161(10):1030. doi:10.1001/jama.1956.02970100096028
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