The estrogen is synthesized in the theca interna cells in the ovary. The primary molecule that begins the synthesis of estrogen is cholesterol. It forms androstenodione. Androstenedione is a ...

Briefly, the H follicles had vascularized (pink or red) theca interna and clear amber follicular fluid (FF) with no debris; the SA follicles had rough and off-white theca interna with fewer but ...