Organi sessuali - Organi sessuali femminili

Ciclo mestruale: Le tre fasi d’ogni ciclo II

Le tre fasi d’ogni ciclo mestruale
(Seen as beginning with the first day of menstruation)
 

Key: FSH: the follicle somulating hormone; E: estrogen; LH: the luteinizing hormone; P: Progesterone.
Note that the progesterone level rises considerably within twenty four hours after ovulation.