During implantation,
A) the syncytial trophoblast erodes a path through the endometrium.
B) the inner cell mass begins to form the placenta.
C) maternal blood vessels in the endometrium are walled off from the blastocyst.
D) the entire trophoblast becomes syncytial.
E) the inner cell mass is temporarily deprived of nutrients.

Question

Quizplus · Accepted Answer

The syncytial trophoblast erodes a path through the endometrium during implantation. This allows the blastocyst to embed itself in the endometrium and establish a connection to maternal blood vessels.

During Implantation