When does premenstrual syndrome (PMS) occur?
a. The follicular phase of the ovarian cycle
b. The luteal phase of the ovarian cycle
c. The dismantling stage of the menstrual cycle
d. The proliferative stage of the stage of the menstrual cycle
B
PMS occur during the luteal stage, which lasts from day 15 to day 28 of a 28-day cycle. The uterus prepares to receive a fertilized ovum during this phase. The follicular phase includes the first 14 days of a 28-day cycle. During this dismantling stage, the endometrial layer sloughs away and menstrual flow begins. During the proliferative stage of the menstrual cycle, the follicle grows and the egg matures.
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