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