Ovum, After ovulation, the ovum travels through the fallopian tubes towards the uterus, where it can be fertilized by a sperm cell. Without...卵子
Illustration of an ovary with the secretion of progesterone by the corpus leteum, the secretion of oestrogen by the follicles, and ovulation.
Illustration of the consequences of menopause caused by hormone imbalance, the end of ovulation and periods. In a woman 50s, there is a drop in the...雌激素, 陰道, 更年期
