Graafian follicleAlso known as an ovarian follicle, a fluid-filled cyst-like cavity found in the ovaries. It surrounds and protects the developing ovum. Once the ovum is released into a Fallopian tube, the follicle develops a yellowish mass of tissue called the corpus luteum. Related category• ANATOMY AND PHYSIOLOGYAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |