Template:Ovary timeline table: Difference between revisions
From Embryology
mNo edit summary |
mNo edit summary |
||
Line 9: | Line 9: | ||
| | | | ||
| intermediate mesoderm, pronephros primordium | | intermediate mesoderm, pronephros primordium | ||
|- | |-bgcolor="F5FAFF" | ||
| 28 days | | 28 days | ||
| | | | ||
Line 17: | Line 17: | ||
| | | | ||
| uteric bud, metanephros, urogenital ridge | | uteric bud, metanephros, urogenital ridge | ||
|- | |-bgcolor="F5FAFF" | ||
| 42 days | | 42 days | ||
| | | | ||
Line 25: | Line 25: | ||
| | | | ||
| paramesonephric duct, gonadal differentiation | | paramesonephric duct, gonadal differentiation | ||
|- | |-bgcolor="F5FAFF" | ||
| 56 days | | 56 days | ||
| | | | ||
Line 33: | Line 33: | ||
| fetal | | fetal | ||
| primary follicles (ovary) | | primary follicles (ovary) | ||
|- | |-bgcolor="F5FAFF" | ||
| 6-7 weeks ({{GA}} 8-9 weeks) | | 6-7 weeks ({{GA}} 8-9 weeks) | ||
| | | | ||
Line 41: | Line 41: | ||
| fetal | | fetal | ||
| formation of syncitial clusters of oogonia and onset of meiotic germ cell differentiation | | formation of syncitial clusters of oogonia and onset of meiotic germ cell differentiation | ||
|- | |-bgcolor="F5FAFF" | ||
| 15-18 weeks ({{GA}} 17–20 weeks) | | 15-18 weeks ({{GA}} 17–20 weeks) | ||
| fetal | | fetal |
Revision as of 12:39, 11 May 2018
Time | Carnegie Stage | Event |
---|---|---|
24 days | intermediate mesoderm, pronephros primordium | |
28 days | mesonephros and mesonephric duct | |
35 days | uteric bud, metanephros, urogenital ridge | |
42 days | cloacal divison, gonadal primordium (indifferent) | |
49 days | paramesonephric duct, gonadal differentiation | |
56 days | paramesonephric duct fusion (female) | |
100 days | fetal | primary follicles (ovary) |
6-7 weeks (GA 8-9 weeks) | mitotic PGC proliferation only | |
12-14 weeks (GA 14-16 weeks) | fetal | formation of syncitial clusters of oogonia and onset of meiotic germ cell differentiation |
15-18 weeks (GA 17–20 weeks) | fetal | breakdown of syncitial clusters and assembly of primordial follicles |
Links: ovary | oocyte | Timeline |