Ovarian and menstrual cycles

Front

What is the proliferative phase of the menstrual cycle?

Back

The proliferative phase is the phase of the menstrual cycle where the endometrium thickens due to increasing levels of estrogen, preparing for potential implantation of a fertilized egg.

Front

What hormone is primarily responsible for the thickening of the endometrium during the proliferative phase?

Back

Increasing levels of estrogen.

Front

What triggers the surge of estrogen at the end of the follicular phase?

Back

The dominant follicle releases estrogen, leading to a peak in estrogen levels.

Front

What is the role of the dominant follicle in the ovarian cycle?

Back

The dominant follicle is responsible for producing estrogen, which regulates the menstrual cycle and triggers the LH surge.

Front

What happens to a primordial follicle activated by high FSH levels?

Back

It develops for approximately 290 days before ovulation.

Front

What causes the surge of LH in the menstrual cycle?

Back

The surge of LH is caused by a surge of estrogen from the dominant follicle.

Front

What is the function of FSH in the ovarian cycle?

Back

FSH (Follicle Stimulating Hormone) stimulates the growth and maturation of ovarian follicles.

Front

What is ovulation and when does it occur in the menstrual cycle?

Back

Ovulation is the release of an egg from the ovary, typically occurring around day 14 of the menstrual cycle.

Front

What is the luteal phase of the menstrual cycle?

Back

The luteal phase follows ovulation and is characterized by the presence of the corpus luteum, which secretes progesterone.

Front

What role does progesterone play in the menstrual cycle?

Back

Progesterone prepares the endometrium for potential implantation of a fertilized egg and maintains the uterine lining.