听骨在胚胎时期生长非常迅速,究竟何时完全长成,诸家说法不一。作者以前曾证明各个听骨最后定形的时间各不相同。据 Ferenc 和 Gyu-la(1973)的材料,听骨的生长具有对数的特性。本研究的任务是观察每一听骨大小的变化过程,并阐明其成长中的数字依从性。为此测量了400个不同时期的胚胎的听骨。获得的数字材料按胎龄分组并用 Listening to bone during embryonic growth is very rapid, exactly when exactly to grow, all different opinions. The authors have previously demonstrated that the time to finalize each beating bone varies. According to Ferenc and Gyu-la (1973), the growth of the ossicles is logarithmic. The task of this study is to observe the process of changing the size of each canon and to clarify its growing digital compliance. To this end measured the ear of 400 different stages of the embryo. The obtained digital materials are grouped by gestational age and used