Template:Ovary timeline table

From Embryology
Human Ovary Timeline
Time Carnegie Stage Event
24 days 11 intermediate mesoderm, pronephros primordium
28 days 12 mesonephros and mesonephric duct
35 days 14 uteric bud, metanephros, urogenital ridge
42 days 17 cloacal divison, gonadal primordium (indifferent)
49 days 19 paramesonephric duct, gonadal differentiation
6-7 weeks (GA 8-9 weeks) primordial germ cell mitosis proliferation commences
56 days 23 paramesonephric duct fusion (female)
12-14 weeks (GA 14-16 weeks) fetal primordial germ cell meiosis germ cell differentiation, formation of syncitial clusters of oogonia
15-18 weeks (GA 17–20 weeks) fetal breakdown of syncitial clusters and assembly of primordial follicles
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