Uesugi Y, Ohta Y, Asashima M, Iguchi T
Graduate School of Integrated Science, Yokohama City University, Seto, Japan.
Anat Rec. 1992 Nov;234(3):432-7. doi: 10.1002/ar.1092340312.
Sexual dimorphism in the shape of the innominate bone was demonstrated in the rat, mouse, Chinese hamster (Cricetulus griseus), frog (Ranna nigromaculata), and newt (Cynops pyrrhogaster) with a computer-assisted morphometric technique. In the rat, mouse, and hamster, ratios of ischium and pubis widths to the innominate bone length (INL) were larger in the males than in the females; however, the ratio of pubis length to INL was larger in the females than in the males. In the frog, the ratio of distance between the upper edge of the acetabulum and the lower edge of the pubis to INL was larger in males than in females. In the newt, ratios of width of ischiopubis and the longitudinal length of the ischiopubis to INL were larger in females than in males.
采用计算机辅助形态测量技术，在大鼠、小鼠、中国仓鼠（黑线仓鼠）、青蛙（黑斑侧褶蛙）和蝾螈（红腹蝾螈）中证实了无名骨形状的两性差异。在大鼠、小鼠和仓鼠中，坐骨和耻骨宽度与无名骨长度（INL）的比值在雄性中比在雌性中更大；然而，耻骨长度与INL的比值在雌性中比在雄性中更大。在青蛙中，髋臼上缘与耻骨下缘之间的距离与INL的比值在雄性中比在雌性中更大。在蝾螈中，坐骨耻骨宽度和坐骨耻骨纵向长度与INL的比值在雌性中比在雄性中更大。
