Complex sentence: The amnion side typically consists of the mesenchymal stromal cells, amniotic epithelial cells and embryonal-like stem cells while the stromal layer and basement membrane are present in both the amnion and the chorion.
Split into simpler sentences: The amnion side typically consists of the mesenchymal stromal cells, amniotic epithelial cells and embryonal-like stem cells. Stromal layer and basement membrane are present both in the amnion and the chorion.