Menstrual Cycle | MCQs

Explanation

The estrous cycle is the reproductive cycle observed in many non-human primates.

It involves periods of sexual receptivity (estrus) during which the female is fertile and can conceive

Explanation

Explanation

The fertile time in the menstrual cycle is typically considered to be 9–15 days,

Especially for individuals with a 28-day cycle, with the most fertile days being around ovulation

Which occurs around day 14 of a 28-day cycle.

However, the fertile window can vary depending on the length of the menstrual cycle and individual factors.

Encompassing the days leading up to ovulation and the day of ovulation 

Itself, as sperm can live for several days in the female reproductive tract, while the egg lives for about 24 hours. 

Explanation

After the removal of both ovaries, the hormone that significantly decreases is estrogen. 

The ovaries are the primary source of estrogen in the female body, so when they are removed, estrogen levels drastically drop. 

Explanation

The corpus luteum is formed from the Graafian follicle after the release of the ovum during ovulation.

Explanation

Due to the process of follicle atresia, the follicle degenerates.

Atresia is the breakdown of immature ovarian follicles, which prevents them from maturing and ovulating.