What is oestrogen primarily known for?

Oestrogen is primarily known as a hormone produced in the ovaries, playing a crucial role in the development and regulation of the female reproductive system, as well as secondary sexual characteristics. It is vital for processes such as the menstrual cycle, pregnancy, and the maintenance of reproductive tissues. Oestrogen also has significant effects on various body systems, including the cardiovascular system and bone health.

This understanding highlights the essential function of oestrogen in female physiology and its impact on overall health. The choice that identifies it as a hormone produced in the ovary accurately reflects its biological significance and primary role within the endocrine system.