Absence of nasal bone的意思|示意
鼻骨缺失
Absence of nasal bone的网络常见释义
鼻骨缺失 胎儿鼻骨发育不全(nasal hypoplasia)及胎儿鼻骨缺失(absence of nasal bone)：胎儿鼻骨于胚胎期第6周开端发育，9-11周经过过程膜性成骨体例骨化，一般胎儿中有1.4%的鼻骨存在缺失。
Absence of nasal bone相关短语
1、 Absence of fetal nasal bone 胎儿缺乏鼻骨
Absence of nasal bone相关例句
Total absence of a nasal bone on a fetus during the second trimester can identify nearly half of all fetuses affected by Down syndrome.
是将近一半的胎儿患有唐氏综合征还是近一半患有唐氏综合征的胎儿没有鼻骨？