The layer of endometrium overlying the implanted chorionic vesicle that progressively diminishes as the chorionic vesicle enlarges.decidua reflexa membrana adventitia
Decidua & Chorionic Velli (General Embryology)
Decidua & Chorionic Velli (General Embryology)
Decidua – Wikipedia
Decidualization – an overview | ScienceDirect Topics