Ovarian Cycle Hormones and Ovulation

The ovarian cycle is controlled by hormones from the hypothalamus, pituitary gland, and ovaries. This hormone network is called the hypothalamic-pituitary-gonadal axis. It helps the body release a mature oocyte, or egg cell, for reproduction.

Before puberty, the hypothalamus releases gonadotropin...

The ovarian cycle, a monthly event in reproductive-age women, is regulated by the hypothalamic-pituitary-gonadal axis to ensure a mature oocyte is released.

Before puberty, low estrogen levels suppress gonadotropin-releasing hormone (GnRH) secretion from the hypothalamus, preventing significant ovarian follicle maturation.

Around p...