Figure 3
From: Origin of germ cells and formation of new primary follicles in adult human ovaries
Distribution of epithelial cords and primary follicles in the ovarian cortex. Panoramic view composed of nine images shows ovarian tunica albuginea filled with CK18+ mesenchymal cells, upper cortex (uc) with epithelial channels (black arrowhead), cords (dashed and white arrowheads – see right inset) and follicle-like structures (solid box, see upper left inset for details). Lower cortex (Ic) shows isolated (dashed box – see lower left inset) and grouped primary follicles (dotted box). Bars in insets indicate μm. Cytokeratin 18 immunostaining, hematoxylin counterstain.