Figure 1: Trophoblast subtypes in rat placenta. H&E stained sections of (A) late gestation rat uteroplacental compartment showing 3 distinct zones [original magnification X 20], (B) labyrinthine with syncytiotrophoblasts (SyT), (C) junctional zone with spongiotrophoblasts (SpT), glycogen cells (GC), trophoblast giant cells (TGC), (D) mesometrial triangle with endovascular TGC (E-TGC) and invasive trophoblasts (InT) [original magnification X 400}.