Anatomy Development period- week 1,2,3,4 ffbadd8f At what location does the amniotic cavity develop? A Between the cytotrophoblast and syncytiotrophoblast B Within the extraembryonic mesoderm C Between the endoderm and mesoderm D Within the epiblast High-Yield Explanation The amniotic cavity develops within the epiblast, and it is a cavity that contains the embryo and amniotic fluid