Findings

In this survey image of the ovarian cortex, primordial follicles and primary follicles are seen subjacent to the capsule. Note also a developing secondary follicle and a Graafian follicle deeper in the cortex.

Comment

Ovarian follicles mature in response to the anterior pituitary hormone, follicle stimulating hormone (FSH). While several secondary follicles can develop simultaneously, usually only one develops into a fully mature Graafian follicle.

Preparation

Paraffin section, hematoxylin and eosin

View

Low-power light microscopy

Specimen

Ovary

Image Credit

Katsumi M. Miyai, M.D., Ph.D
Department of Pathology
School of Medicine
University of California, San Diego