The pituitary is the endocrine gland in the brain that signals ovaries to release an egg.
pituitary gland
ADH antidiuretic hormone - pituitary gland-kidneysTRH thyroitropin releasing hormone - pituitary gland-thyroid glandCRH corticotropin releasing hormone - pituitary gland-adrenal glandGnRH Gonadotropin-releasing hormone - pituitary gland-gonadsOxytocin ovaries pituitary glands-ovariesPIH prolactin inhibitors hormone - pituitary gland-mammary glands.
Gonadotropin-releasing hormone causes the pituitary gland in the brain to make and secrete the hormones luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In men, these hormones cause the testicles to make testosterone. In women, they cause the ovaries to make estrogen and progesterone.
The Pituitary gland releases hormones that trigger the testes (testicles) in males to produce testosterone, and the ovaries to produce oestrogen in females.
Pituitary Gland Hypothalamus
Female hormones are oestrogen and progesterone and are produced in the pituitary gland in the brain and ovaries. In males the hormones are testosterone and are produced also in the pituitary gland and the testes.
Women without ovaries can still get their period. Estrogen is triggered by the pituitary gland. It may still signal the build up and shedding of the uterine lining.
The hypothalamus secretes releasing hormones that stimulate the release of hormones by the anterior pituitary. These hypothalamic releasing hormones include: * Thyrotropin-releasing hormone * Corticotropin-releasing hormone * Gonadotropin-releasing hormone * Growth hormone-releasing hormone
The ovaries and the adrenal cortex (part of the adrenal gland, superior to the kidneys) are major sources of testosterone for women.
The ovaries
The Hypothalamus controls the master gland (pituitary gland) by secreting hormone releasing and inhibitory factors.
The pituitary gland releases hormones (gonadotropins) that control both the reproductive and endocrine function of the ovaries.