Which of the following components plays the most active role in invading the endometrium during blastocyst implantation?
A、Epiblaslt ;
B、Syncytiotrophoblast;
C、 Hypoblast;
D、 Extraembryonic somatic mesoderm
发布时间:2026-02-07 11:38:01
A、Epiblaslt ;
B、Syncytiotrophoblast;
C、 Hypoblast;
D、 Extraembryonic somatic mesoderm