In which part of the female body is oestrogen primarily produced?

Oestrogen is primarily produced in the ovaries, which is the correct response. The ovaries are the female reproductive organs responsible for producing eggs and secreting hormones, including oestrogen and progesterone. Oestrogen plays a crucial role in regulating the menstrual cycle, maintaining pregnancy, and influencing the development of secondary sexual characteristics in females.

While the uterus, adrenal glands, and fallopian tubes are involved in various aspects of female reproductive health, they are not the primary sites of oestrogen production. The uterus does respond to oestrogen but does not produce it. The adrenal glands can produce small amounts of oestrogen, but their primary role relates to cortisol and other hormones. The fallopian tubes are the conduits for the egg and sperm, but they do not have a role in hormone production. Thus, the ovaries are clearly identified as the main source of oestrogen in the female body.