Now a gonad is basically a structure that produces gametes. And that means that our ovaries are the reproductive organs of the female and they are responsible for producing the female gametes known as excels or ovum. Now not only that, but the ovaries also act as endocrine gland lands. They produce and release special types of hormones known as the female sex hormone. So they produce estrogen as well as progesterone. Now before we discuss what these two hormones are and what their function is, let's briefly discuss the structure of our female reproductive system.