Uterine implantation due to enzymatic digestion of the endometrium is initiated by the ________.
A) inner cell mass
B) endoderm
C) mesoderm
D) trophoblast

Question

Quizplus · Accepted Answer

Uterine implantation is initiated by the trophoblast. The trophoblast cells invade the endometrium and digest it using enzymes, allowing the embryo to implant itself in the uterine wall. The inner cell mass, endoderm, and mesoderm are not directly involved in this process.

Uterine Implantation Due to Enzymatic Digestion of the Endometrium Is