The primary aim of this study was to describe the insertion sites of the ligaments holding the flexor digitorum profundus and superficialis muscles (flexor ridges) in proximal phalanges 2–5 of African apes and modern humans. To interpret differences in flexor ridge size based on general behavioral differences among taxa.

中文翻译：

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非洲猿猴和现代人类的近端指骨中的插入位点

这项研究的主要目的是描述非洲猿类和现代人类近端指骨2–5中握有指前屈屈肌和浅表肌（屈脊）的韧带的插入部位。根据类群之间的一般行为差异来解释屈肌脊尺寸的差异。