Akademik

graaf·ian follicle .gräf-ē-ən-, .graf- n, often cap G a mature follicle in a mammalian ovary that contains a liquid-filled cavity and that ruptures during ovulation to release an egg called also vesicular ovarian follicle

de Graaf də-'gräf Reinier (1641-1673)

Dutch physician and anatomist. De Graaf is regarded as one of the creators of experimental physiology. In 1672 he produced a treatise on the female reproductive organs that is considered one of the seminal works of biology. De Graaf demonstrated ovulation anatomically, pathologically, and experimentally. The treatise contains the description of the structures now known in English as the graafian follicles. The Swiss anatomist Albrecht von Haller (1708-1777) named them after de Graaf. In 1827 the German embryologist Karl Ernst von Baer (1792-1876) discovered that although the graafian follicles contain the eggs from which organisms develop, they are not the eggs themselves.

a mature follicle in the ovary prior to ovulation, containing a large fluid-filled cavity that distends the surface of the ovary. The oocyte develops inside the follicle, attached to one side.