Ovarian follicles. Light micrograph of a section through tissue from an ovary,showing a primary follicle (left) and a secondary follicle (centre). The ovary is the reproductive structure that produces the female sex cells (ova). An ovarian follicle is the structure within which an ovum develops from an oocyte. Primary follicles contain a central oocyte (female germ cell,egg) surrounded by a single layer of cuboidal granulosa cells. A secondary ovarian follicle has outer follicle cells and follicular cavities,and the oocyte is now more fully developed compared to the primordial and primary stages. Later stages culminate in ovulation | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / PROF. R. WEGMANN |
Bildgröße: | 5098 px × 3428 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |