Image Gallery
Implantation Well Underway
![Implantation Well Underway [Click for next image]](/images/prenatal_numbered_655/implantation-well-underway.jpg "Click for next image")
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Label Key:1. trophoblast cells 2. inner cell mass 3. decidual reaction (site of early placenta formation) 4. inner lining of uterine wall (endometrium), seen in cross-section 5. muscle layer of uterine wall (myometrium) 6. uterine cavity | ||
| All ages referenced to fertilization, not last menstrual period. |
Hatched Blastocyst
Free Blastocyst (without zona)
Implantation Well Underway
Embryo Cross Section 8-9 Days
Embryo at About 11 Days
Tube Shaped Heart
