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目的探讨胎脑颞对脑沟的发育规律，为研究成人脑的结构和功能提供参考依据。方法将收集到的89具不同胎龄的胎儿，经10％福尔马林整体固定3个月后取脑，除去脑膜，观测颞叶各脑沟的出现时间、位置、长度及深度等，并对各胎龄组颞叶脑沟的发育情况进行对比分析。结果颞叶脑沟一般从胎龄5个月开始显像，至8个月各脑沟全部出现；随胎龄增长，脑沟向两端延伸，长度增加，深度也随之加深，弯曲程度更加明显；脑沟长度和深度增力口最快的时间一般在胎龄8～9月。结论胎脑颞叶脑沟的出现、生长发育与胎龄有明显关系．且各脑沟的发育规律不尽相同。
Objective To explore the law of fetal brain temporal sulci development, to provide a reference for the study of adult brain structure and function. Methods Totally 89 fetuses with different gestational ages were collected and fixed in 10% formalin for 3 months. The brain was removed and the time, location, length and depth of the temporal sulci were observed The development of temporal lobe sulcus in each gestational age group was compared and analyzed. Results Temporal lobe sulcus generally visualized from gestational age 5 months to 8 months, all of the sulci all appear; with the gestational age, sulci extend to both ends, the length increases, the depth also will deepen, the degree of bending more Obvious; sulci length and depth of the mouth of the fastest increase in the general gestational age in 8 to 9 months. Conclusion The occurrence of fetal brain temporal sulci, growth and development and gestational age have a clear relationship. And the development of each sulci different.