menstrual cycle
What is the role of thecal cells in the ovarian cycle?
They synthesize androgens
What is the primary function of the corpus luteum?
Produce progesterone
What triggers the LH surge just before ovulation?
High estrogen levels
What is the effect of estrogen on FSH and LH secretion during the early follicular phase?
It exerts negative feedback
What happens to estrogen levels just before ovulation?
They peak
What happens to the endometrium if the corpus luteum degenerates?
It sloughs off during menstruation
What occurs during luteinization?
Granulosa cells transform into luteal cells
What is the primary hormone produced by the corpus luteum?
Progesterone
What hormone is responsible for the inflammatory reaction that aids in ovulation?
Prostaglandins
What is the effect of estrogen on the endometrium during the early follicular phase?
It stimulates proliferation
What is the average duration of the menstrual cycle?
28 days
What hormone is primarily responsible for the maturation of follicles during the early follicular phase?
FSH
What hormone is secreted by the anterior pituitary to stimulate follicle development?
FSH
What is the typical volume of menstrual discharge?
40 mL
What is the role of granulosa cells in the follicle?
They convert androgens to estrogens
What happens to the corpus luteum if pregnancy does not occur?
It degenerates into corpus albicans
What is the main function of progesterone during the luteal phase?
Prepare the endometrium for pregnancy
What is the role of inhibin during the menstrual cycle?
Inhibits gonadotropin secretion
What hormone causes the cervical mucus to thicken during the luteal phase?
Progesterone