Aspect of the ovarian cortex observed with the objective of 10x. We can see the epithelium (more externally located) and the underlying conjunctive-type thin tunica albuginea. Under the tunica albuginea appear numerous primordial follicles and, more internally, there are other follicles at different development stages (primary and secondary follicles). In the secondary follicles, we can observe the oocyte surrounded by the follicular antrum, as well as cells of the granular layer and the theca (yellow) (more externally located).