Cytotrophoblast
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| Cytotrophoblast | ||
|---|---|---|
| Primary chorionic villi. Diagrammatic. | ||
| Secondary chorionic villi. Diagrammatic. | ||
| Gray's | subject #6 47 | |
| Carnegie stage | 5a | |
| Days | 8 | |
| MeSH | Trophoblasts | |
| Dorlands/Elsevier | c_73/12278820 | |
The cytotrophoblast (or layer of Langhans) is the inner layer of the trophoblast, interior to the syncytiotrophoblast in an embryo. It serves to anchor the embryonic chorion to the maternal endometrium.
Cytotrophoblasts are stem cells in the chorionic villi. During differentiation, mononuclear cytotrophoblast fuse together into the multinucleated syncytiotrophoblasts.
Invading cytotrophoblasts
These cells invade maternal uterine tissues and thus are in direct contact with maternal stroma and immune cells.
Additional images
Gray12.png
Section through embryonic area of Vespertilio murinus to show the formation of the amniotic cavity. |
External links
- Histology at BU 19908loa - "Female Reproductive System: placental villi"
- Diagram at McGill
 | This developmental biology article is a stub. You can help Wikipedia by expanding it. |
