from the complementary behavior of the two layers of trophoblast , with respect to evidence of reproductive ability , it is concluded that the rapid accumulation of nuclei in the syncytiotrophoblast , during the early development of the placenta , is accounted for by cell proliferation within the cytotrophoblast followed by alignment and coalescence of some daughter cells in the syncytiotrophoblast .
C0007610
nuclei
C0007634
cells