Hughes P C, Tanner J M, Williams J P
J Anat. 1978 Sep;127(Pt 1):83-91.
The growth of the skull of the rat was longitudinally from 23 to 140 day PC from radiographs. Four measurements were made on each animal at each age studied. The velocity graphs of these measurements showed that for two, namely neurocranium length and bizygomatic width, the peak rate of growth occurred before birth. Viscerocranium length and neurocranium width showed peak rates after birth. Males became significantly larger than females in each of the absolute measurements studied, but in cranial index and facial index there were no significant differences between the sexes. Both these indices showed strain differences when compared to the results obtained by other workers.
通过X线照片对23日龄至出生后140日龄大鼠颅骨的生长进行纵向研究。在每个研究年龄对每只动物进行四项测量。这些测量的速度图显示，对于其中两项测量，即脑颅长度和颧宽，生长速率峰值出现在出生前。面颅长度和脑颅宽度的生长速率峰值出现在出生后。在所研究的每项绝对测量中，雄性大鼠均显著大于雌性大鼠，但在颅指数和面部指数方面，两性之间无显著差异。与其他研究人员所得结果相比，这两个指数均显示出品系差异。
