Template:Week 2 Embryo Stages and Events table
From Embryology
| Week 2 - Human Embryo Stages and Events (GA week 4) | ||
|---|---|---|
| Embryo Week: Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Week 9 | ||
| Event | ||
| Stage 5 |   Implantation
| |
 X inactivation
| ||
| Stage 6 |  Chorionic Cavity
| |
| Note - the day timing of stages is only approximate, system names link to first page of that specific system, and events are based upon the literature cited below. | ||
| References
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