Implantation normally occurs
A) in the oviduct
B) about three days after fertilization
C) during the secretory, or progestational, phase
D) about three days after fertilization and during the secretory, or progestational, phase
E) all of these

Question

Quizplus · Accepted Answer

Implantation typically occurs during the secretory phase of the menstrual cycle, which is characterized by the presence of progesterone that prepares the uterine lining for implantation. It usually happens about 6-10 days after fertilization, not three days.

Implantation Normally Occurs