Overview of the Menstrual Cycle

What is the primary role of Follicular Stimulating Hormone (FSH) in the female reproductive cycle?

What is the outcome of the ovulatory phase in the menstrual cycle?

What happens to primordial follicles at birth?

How many chromosomes are present in a diploid cell?

During which phase of the menstrual cycle does the corpus luteum develop?

What changes in the menstrual cycle signal the start of menstruation?

What are the stem cells in females referred to as?

What characterizes the normal menstrual cycle timeframe?

Overview of the Menstrual Cycle

The menstrual cycle lasts approximately 28 days, but a normal range is 21-39 days.
Begins at puberty and concludes at menopause, marking the reproductive years of females.

Ovulation Process

Ovulation involves releasing a mature female sex cell (ovum) from a Graafian Follicle.
The released ovum travels to the fallopian tube, preparing for potential fertilization.

Hormonal Regulation

Follicular Stimulating Hormone (FSH) and Luteinizing Hormone (LH) are key gonadotropins.
FSH and LH are produced and function in the ovary, controlling the menstrual cycle.

Oogenesis and Folliculogenesis

At birth, females have stem cells known as oogoniums, which are diploid cells (2n) containing 46 chromosomes.
Oogoniums develop into primordial cells prior to puberty, setting the stage for future ovulation.

Hormonal Changes During the Cycle

Androgens released by the ovary are converted into estrogen.
Following ovulation, the ovary also produces progesterone, crucial for the menstrual cycle regulation.

Primordial Follicles

Primordial follicles consist of immature ova encased in a layer of granulosa cells.
These follicles are critical for the progression of oocyte maturation and ovulation throughout a female's reproductive lifecycle.

Explore the intricate details of the menstrual cycle, including its phases, ovulation, and hormonal regulation. This quiz covers essential concepts such as oogenesis and the changes that occur throughout the cycle, providing a comprehensive understanding of female reproductive biology.