<prompt> Normal placenta contains fetal and maternal pa. Which is the MOST inner pa of placenta?Decidua basalisNitabuch layerCytotrophoblastSyncytiotrophoblast  <response>: The placenta is limited internally fetal aspect by the amniotic membrane and chorionic plate; externally maternal aspect by the basal plate. Basal plate consists of following structures from outside inwards; Pa of the compact and spongy layer of the decidua basalis Nitabuchs layer of fibrinoid degeneration of the outer syncytiotrophoblast at the junction of the cytotrophoblastic shell and decidua Cytotrophoblastic shell Syncytiotrophoblast Ref: Textbook of Obstetrics by D C Dutta, 6th edition, Page 30. 