胚胎原基 embryonic primordia
- 胚胎12天,胃背系膜内出现由间充质细胞形成的脾原基。
The results were as follows: (l)On the 12th day of embryos, the anlage of spleen appeared in the dorsal mwesogastrium. - 面神经的发育面听原基在胚胎3周时出现。
Facial nerve's growth surface listens to the anlage when the embryo 3 weeks appears.
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