Differentiation of Ovaries 
·The differentiation of the ovaries happens later than that of the testes, taking place during the 8th week. Since females lack the Y chromosome, they have no SRY gene, except when a translocation of the gene onto the X chromosome occurs.

·Histologically two regions can be distinguished in an ovary:
            −Cortex, containing all the elements of the parenchyma 
            −Medulla, which shares the elements of the stroma with the cortex.

· The development of the ovary is characterized by the following: 
            −Gonadal cords remain in existence only near the cortex; in the medulla they atrophy. The rete ovarii is only rudimentarily developed. Its cells probably come from the mesonephros, but a connection between the rete testis and the mesonephros never comes into existence. 
            −Cortical gonadal cords separate themselves from the others in order to make isolated cell accumulations around the oocytes and thus to form the primordial follicles.

Note: Coelomic epithelium, out of which a simple cubic ovarian mesothelium arises

Displacement of the ovaries The ovaries are also moved slightly from the location where they are engendered in the middle of the abdomen to the pelvis. This migration results partially from the massive growth of the upper abdominal region in comparison with the pelvic area. The role of the lower gubernaculum in displacement of the ovaries is vague. The lower gubernaculum has its origin in the bottom side of the ovary and forms the ovarian ligament and, further down, the round ligament of uterus that reaches the genital swelling (labia majora) through the inguinal canal.