Estrogen's role includes preparing the uterus for pregnancy and maintaining the uterus during pregnancy; which gland produces estrogen?

Estrogen's role includes preparing the uterus for pregnancy and maintaining the uterus during pregnancy; which gland produces estrogen?

• A. Pituitary gland
• B. Ovaries
• C. Testes
• D. Adrenal glands

Answer: (B)

Estrogen is produced mainly by the ovaries. The ovarian follicles synthesize estradiol, the primary form of estrogen, in response to signals from the pituitary gland (FSH and LH). This estrogen thickens and maintains the uterine lining, preparing the uterus for pregnancy and supporting its lining if pregnancy occurs. While other tissues like the placenta (during pregnancy) and small amounts from the adrenal glands or testes can contribute, the ovaries are the main source of estrogen for stimulating the uterus in the typical scenario.

Estrogen is produced mainly by the ovaries. The ovarian follicles synthesize estradiol, the primary form of estrogen, in response to signals from the pituitary gland (FSH and LH). This estrogen thickens and maintains the uterine lining, preparing the uterus for pregnancy and supporting its lining if pregnancy occurs. While other tissues like the placenta (during pregnancy) and small amounts from the adrenal glands or testes can contribute, the ovaries are the main source of estrogen for stimulating the uterus in the typical scenario.