In which anatomical structure is estrogen produced?

Estrogen is primarily produced in the ovaries, which are the female reproductive organs responsible for the production of eggs and hormones. The ovaries contain follicles where the development of eggs occurs; during this process, they also synthesize and secrete estrogen, a crucial hormone involved in regulating various aspects of the female reproductive system, including the menstrual cycle and pregnancy.

While other structures like the adrenal glands also produce small amounts of estrogen, the primary site of estrogen production in females is the ovaries. The endocrine system as a whole involves various glands that secrete hormones, including estrogen, but it does not pinpoint a specific anatomical structure. The hypothalamus plays a role in regulating hormones and signaling the ovaries to produce estrogen, but it does not produce estrogen itself. Thus, the selection of the ovaries is accurate as it directly identifies the primary anatomical structure where estrogen is synthesized.