Ovarian cycle 1. Follicular phase of menstrual cycle
Primordial follicles (many) - each contains 1 immature ovum
Enlarge of several of these follicles - antrum formation- follicular fluid
1 dominant follicle - (Graafian follicle, growth), secretion of estrogens (primary -theca interna, high produc.- granulosa cells)
atretic follicules (regress, apoptosis)