[Anatomy of the interosseous and lumbrical muscles of the hand].

After anatomic dissections and cross section studies the authors gives detailed descriptions of the insertions of the dorsal and palmar interossei muscles and of the lumbrical muscles. For each anatomic structure the different terms used in the literature are recalled. The exact typographic relations of the interossei muscles at the level of the metacarpophalangeal and the proximal interphalangeal joints are described.