Days 15-28 of the uterine (menstrual) cycle are known as ________.
A) the menstrual phase
B) the secretory phase
C) menses
D) the proliferative phase
E) implantation

Question

Quizplus · Accepted Answer

Days 15-28 of the uterine cycle are known as the secretory phase, during which the endometrium prepares for possible implantation of a fertilized egg by thickening and becoming more vascularized. If fertilization does not occur, the corpus luteum breaks down, progesterone levels decrease, and the uterine lining is shed during menstruation, marking the beginning of a new menstrual cycle.

Days 15-28 of the Uterine (Menstrual) Cycle Are Known as ________