Syncytotrophoblast
Outer layer of trophoblast, It is not stem cells so it can
not differentiated to other cell types.
It invades the wall of uterus and establishes nutritional
supply between mother to fetus
It produces terminally differentiated cell. This tissue is
specialized and it is multinucleated
with no individual cell
The syncytiotrophoblast secretes
progesterone and leptin in addition to human chorionic gonadotropin (hCG) and
human placental lactogen (HPL); hCG prevents degeneration of the corpus luteum.
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