Question

Which of the following is NOT a phase in the menstrual cycle?


A. ovulation


B. luteal


C. gastrulation


D. follicular

Answer 1

So is it C?

Answer 2

If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo. So B is off the chart and A is also off the chart. There are four phases in one cycle:
Menstrual phase (From day 1 to 5)
Follicular phase (From day 1 to 13)
Ovulation phase (Day 14)
Luteal phase (From day 15 to 28)

The answer is C. Gastrulation.

Yes, the answer is C.