求翻译：子宫腔里面有一层膜，叫子宫内膜，从青春期到更年期，子宫内膜受卵巢分泌的性激素影响，发生周期性的内膜脱落和出血，通过阴道流出体外形成月经是什么意思？

Inside the uterine cavity with a layer of membrane, called the endometrium, from puberty to menopause, endometrial secretion of hormones by the ovaries effects of periodic endometrial shedding occurs and bleeding through the vagina to form the menstrual flow in vitro

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Uterine cavity with a layer of membrane, called the endometrium, from puberty to menopause, endometrial ovarian effect of secretion of hormones, occur periodically in the expulsion and bleeding through vaginal out of the in vitro formation of menstruation

Inside the uterine cavity with a layer of membrane, called the endometrium, from puberty to menopause, endometrial secretion of hormones by the ovaries effects of periodic endometrial shedding occurs and bleeding through the vagina to form the menstrual flow in vitro