Syncytiotrophoblast
Syncytiotrophoblast
Syncytiotrophoblast (pronunciation: sin-si-tio-tro-fo-blast) is a type of cell that forms the outer layer of the placenta during pregnancy.
Etymology
The term "Syncytiotrophoblast" is derived from the Greek words "syn" meaning "together", "kytisos" meaning "cell", "trophos" meaning "nourishment", and "blastos" meaning "germ".
Function
The primary function of the syncytiotrophoblast is to mediate the exchange of nutrients, gases, and waste products between the mother and the fetus. It also produces several important hormones, including human chorionic gonadotropin (hCG), progesterone, and estrogen, which are essential for maintaining pregnancy.
Related Terms
- Trophoblast: The outer layer of cells in a blastocyst that provide nutrients to the embryo and develop into a large part of the placenta.
- Cytotrophoblast: The inner layer of the trophoblast, which forms the syncytiotrophoblast.
- Blastocyst: An early stage in the development of an embryo, consisting of a sphere made up of an outer layer of cells (the trophoblast), a fluid-filled cavity (the blastocoel), and a cluster of cells on the interior (the inner cell mass).
See Also
External links
- Medical encyclopedia article on Syncytiotrophoblast
- Wikipedia's article - Syncytiotrophoblast
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