Select the correct statement about the uterine cycle.
A) During the secretory phase, estrogen levels are at their highest.
B) The menstrual phase of the cycle is normally from day 1 to day 8.
C) During the proliferative phase, levels of progesterone rise as the follicle begins to produce more hormone.
D) If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.

Question

Quizplus · Accepted Answer

During the secretory phase, progesterone levels are at their highest, not estrogen. The menstrual phase typically lasts from day 1 to day 5, not day 8. In the proliferative phase, estrogen levels rise, not progesterone. The correct statement is D, as the corpus luteum is maintained by human chorionic gonadotropin (hCG), which is secreted by the developing embryo, ensuring the continued production of progesterone and estrogen necessary to maintain the pregnancy.

Select the Correct Statement About the Uterine Cycle