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Ovarian cycle consist of which of the following two parts?

  • A.Graafian phase; Uterine phase
  • B.Follicular phase; Menstrual phase
  • C.Luteal phase; Uterine phase
  • D.Follicular phase; Luteal phase

Answer: D

The two phases are the follicular phase and the luteal phase.

The ovarian cycle describes changes in the ovary. In the follicular phase a follicle matures under FSH and produces estrogen; ovulation releases the ovum at mid-cycle; in the luteal phase the empty follicle becomes the corpus luteum, which secretes progesterone.

The menstrual phase belongs to the uterine (endometrial) cycle, the parallel changes in the uterine lining, and 'uterine phase' is not a part of the ovarian cycle at all. A Graafian follicle is the mature follicle, not a phase.

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