notes by dott. Claudio Italiano The sexual and reproductive function in women can be considered of two phases: the first one consisting in the preparation of the organism for conception and gestation, the second in the gestation itself. Approximately every 28 days the gonadotropic hormones of the adenohypophysis start the maturation of the new follicles in the ovary, one of which, at the end, ovulates on the 14th day of the cycle. During the maturation of follicles, estrogens are secreted. After ovulation, the secretory cells of the follicle are transformed into a corpus luteum that secretes considerable quantities of ovarian hormones, progesterone and estrogen. Two weeks later, the corpus luteum degenerates; then the ovarian hormones, progesterone and estrogens decrease strongly, and the menstruation intervenes: another ovarian cycle begins again.
all' index sessuology