Question

The ovarian and menstrual cycles overlap with one another. Match each description of an event In the ovarian cycle on the left, with an event of the menstrual cycle on the right.

Answer 1

Ovarian cycle events : uterine cycle events

The formation of Corpus albicans : onset of Premenstrual Phase.

Explanation- During the onset of premenstrual phase, after Corpus luteum degenerates, it is converted into a mass of the fibrous tissue called Corpus albicans.

Ovulation of ovarian cycle : End of the Proliferative Phase.

Explanation-At the end of the proliferative phase, i.e. nearly 14 days before the onset of next menstrual cycle, the shedding of ovum occurs. This is known as ovulation.

The Luteal Phase of the ovarian cycle : Progesterone spike of Secretory Phase.

Explanation- The subsequent phase of 14 days in which Corpus luteum is active, is referred to as the secretory phase or the Luteal Phase. In this Phase progesterone is is actively secreted by Corpus luteum.

FSH spike in the Follicular Phase : The onset of menstruation.

Explanation- The gonadotropin FSH ( follicle stimulating hormone) show a spike during the onset of menstruation.

LH spike of the ovarian cycle : Estradiol spike.

Explanation- The gonadotropin LH (Luteinizing Hormone) is active during the proliferative phase of menstrual cycle. It stimulates follicular development as well as secretion of estrogen.

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