The ________ is the Portion of the Endometrium Not in Contact

Question

The ________ is the portion of the endometrium not in contact with the chorion.
A) trophoblast
B) allantois
C) capsular decidua
D) functional decidua
E) parietal decidua

Accepted Answer

The parietal decidua is the portion of the endometrium that lines the uterine cavity and is not in contact with the chorion, while the capsular decidua is the portion in contact with the chorion. The trophoblast is the outer layer of cells of the blastocyst, and the allantois is a membranous sac that extends from the embryo to the umbilical cord. The functional decidua is the portion of the endometrium that undergoes changes to support implantation and placental development.