SEM of a sectioned ovary at9-10 weeks of pregnancy

Numéro d’image : 11874991
SEM of a sectioned ovary at9-10 weeks of pregnancy
Embryo. Coloured scanning electron micrograph of a sectioned human ovary of an embryo 9-10 weeks after fertilisation. The central part (blue) is called the medulla; it is surrounded by a cortical area (pale red) and by a surface epithelium (orange). Previously to this stage the medulla is occupied by clusters of primitive germ cells,known as sex cords,which have here disappeared and are replaced by a vascular stroma. The surface epithelium of the ovary gives rise in the 7th week to a second generation of sex cords,the cortical cords,which contain the final set of germ cells. Magnification: x170 at 6x7cm size
Licence : Droits gérés
Crédit: Science Photo Library / PROFESSORS P.M. MOTTA & S. MAKABE
Taille de l’image : 4979 px × 3543 px
Model Release : Non requis
Property Release : Non requis
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