what endocrine organ secretes estrogen
The major glands of the endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, and the reproductive organs (ovaries and testes). The pancreas is also a part of this system; it has a role in hormone production as well as in digestion. The endocrine system is regulated by feedback in much the same way that a thermostat regulates the temperature in a room.