CHAPTER 34 Reproductive Cycle Immature follicles within the ovary Oocyte ⊙ Developing Penge follicle Granulosa Corpus albicans Theca cell Involution Ovulation (release of the Corpus egg through luteum (Blood and the wall of the fibrin) ovary FIGURE 34.3. Cyclic changes in ovarian follicle development. (From Smith RP: Gynecology in Primary Care. Baltimore, Williams Wilkins, 1996, p. 29.)