摘要
目的观察胎儿面颅骨初级骨化中心出现的时间顺序。方法采用Noback氏法将胎儿制成透明标本，用茜素红染色观察。结果胎儿面颅骨初级骨化中心出现的时间为8～32周；最早出现的是上、下领骨及颧骨，最晚出现舌骨大角。面颅骨出现初级骨化中心的数目分别是1～5个，其中泪骨、下鼻甲最少，仅1个；舌骨最多，5个。除舌骨、下鼻甲、腭骨锥突和下领颈为软骨内成骨外，其余面颅骨均为膜内成骨。结论我国胎儿面颅骨初级骨化中心出现的时间与Potter报导的美国胎儿面颅骨初级骨化中心出现的时间基本相同。
Objective To observe the occurring time of the primary ossification center of the fetus' cranium viscerale. Methods With the Noback' s method, every fetus was made transparent and then dyed dark red by the Alizarin red. Results The occurring time of primary ossification center of the fetus' cranium viscerale was btween the sib and 32th week. The earliest were maxilla,mandible and zygmatic bones and the latest part is the cornu mains of hyoid bone. The number of primary ossification centers of each cranium viscerale are 1-5 respectively. There is one center at least in the lacrimal bone and inferior nasal concha and five at most in the hyoid bone. All the bones of facial cranium developed Intramembranously except that the hyoid bone, inferior nasal concha, processus pyramidalis and mandibular neck developed endochondrally. Condusion The occurring time of primary osslflcatlon center of Chinese fetus' cranium viscerale is almost the same as the American fetus' according to Dr Potter' S report.
出处
《临沂医学专科学校学报》
1999年第1期5-6,共2页
Journal of Linyi Medical College
关键词
初级骨化中心
面颅骨
胎儿
Primary ossification center
Cranium viscerale
Fetus
