Development of Ovarian Activity and Its Control.- Sex Determination.- Development of the Reproductive System, Its Function and Control.- Development of the ovary.- Oogenesis.- Development of the genital apparatus.- Development of the adenohypophysis.- Development of the hypothalamus.- Development of the pineal organ.- Sexual differentiation of the hypothalamus.- Sexual Maturation.- Mechanisms Controlling Sexual Maturation.- The brain and sexual maturation.- Influence of age, body-weight, body composition and metabolism on sexual maturation.- Pituitary and sexual maturation.- Pineal gland and sexual maturation.- Adrenals and sexual maturation.- Qualitative changes in steroidogenesis and sexual maturation.- Control of Ovarian Activity.- Extrahypothalamic Structures and the Cerebral Cortex.- Limbic system.- The pineal gland.- Cerebral cortex.- Pheromones.- Innervation of the ovary.- Hypothalamus.- Hypothalamic nuclei and their nervous pathways.- Ependyma.- Hypothalamo-hypophyseal portal system.- Biogenic amines.- Hypothalamic releasing hormones.- LH-RH (GnRH, LH/FSH-RH, LRF).- LH-RH analogues.- PRH.- Hypothalamic inhibitory hormones.- PIH.- Feedbacks in the hypothalamo-hypophyso-ovarian relations.- Long (external) feedback of ovarian steroids.- Short (internal) feedback of hypophyseal gonadotropins.- Ultrashort feedback of hypothalamic releasing hormones.- Control of FSH and LH secretion.- Tonic and cyclic mechanism of gonadotropic secretion.- Mutual relationship between gonadotropins and steroids during the menstrual cycle and ovulation.- Participation of other substances in the control of the menstrual cycle.- Pulsatile release of gonadotropins.- Circadian rhythms in the endocrine system.- Physiological and mathematical model of the menstrual cycle.- Pituitary.- Gonadotropins.- Human follicle stimulating hormone (hFSH, follitropin) and human luteinizing hormone (hLH, lutropin).- Methods for the assessment of gonadotropins.- Human chorionic gonadotropin (hCG).- ProllÓ*