Abstract
The purpose of this study was the determination of the normal condition of the Mm. interspinales of the Japanese by the examination of a comparatively large number of cases (30 bodies,60 sides), and the results of the examinations were processed statistically. The Mm. interspinales of man consist of the Mm. interspinales cervicales, the Mm. interspinales thoracales, the Mm. interspinales lumbales and the M. interspinalis sacralis.