Primordial
follicles:
- Oocyte (primary)
- Follicular cells (flattened)
Are the follicular (granulosa)
cells an example of epithelial cells?
Primary follicles:![](../images/prim_fol.jpg)
- Oocyte (primary)
- Zona pellucida
- Cuboidal follicle cells or zona
granulosa
- Theca folliculi
Secondary (or vesicular) follicles:
-
Oocyte (primary)
- Zona pellucida
- Zona granulosa
- Follicular antrum
- Cumulus oophorus
- Theca interna
- Theca externa
Mature or Graafian follicle:
![](../images/graf_fol.jpg)
- Oocyte (secondary)
- Zona pellucida
- Zona granulosa
- Corona radiata
- Theca interna
- Theca externa
Menopause and
ovarian exhaustion. |