Which hormone is primarily produced by the ovaries?

Estrogen is primarily produced by the ovaries and plays a crucial role in the development and regulation of the female reproductive system and secondary sexual characteristics. This hormone is essential for processes such as the menstrual cycle, fertility, and the development of breasts.

The ovaries are the main source of estrogen during the reproductive years, and it is involved in various important bodily functions, including bone health, heart health, and the regulation of the menstrual cycle. Understanding the role of estrogen is important when considering reproductive health and hormonal balance in women.

Other hormones listed, such as testosterone, cortisol, and insulin, are produced by different glands or organs in the body. Testosterone, while present in both men and women, is primarily produced in the testes in males. Cortisol is a steroid hormone produced by the adrenal glands, and insulin is produced by the pancreas to regulate blood sugar levels. Thus, estrogen’s association with the ovaries is what makes it the correct choice in this context.