Trophoblast
From WikiLectures
The trophoblast is a layer of flat to cubical cells forming the outer layer of the blastocyst epithelium (outer cell mass), which differentiates into the amniotic sac and the placenta (extraembryonic tissue of the embryo). It mediates the nidation of the egg (using trophoblast L-selectin binding to endometrial carbohydrate receptors , trophoblast integrins, laminin and endometrial intercellular mass fibronectin), then proliferates and differentiates into two layers:
- inner layer: cytotrophoblast;
- outer layer: syncytiotrophoblast.
Links[edit | edit source]
Related articles[edit | edit source]
- First week of embryonal development
- Portal Embryology
- Prenatal period
- Amniotic sac and placenta
- Placenta
Refrences[edit | edit source]
- VOKURKA, Martin – HUGO, Jan, et al. Velký lékařský slovník. 9. edition. Praha : Maxdorf, 2009. pp. 1159. ISBN 978-80-7345-202-5.
- SADLER, Thomas, W – SINHA, M.D. Langmanova lékařská embryologie. 1. edition. Praha : Grada, 2011. pp. 414. ISBN 978-80-247-2640-3.
