Splanchnic layer/ Visceral layer/ Inner layer develops adjacent to hypoblast Laterally, intraembryonic mesoderm is in contact with extraembryonic mesoderm.
Somatic layer/ Parietal layer/ Outer layer develops adjacent to cytotrophoblast 2. Extraembryonic mesoderm form two layers 1. NAJEEB LECTURE NOTES BY FATIMA HAIDER OVERVIEW Intraembryonic mesoderm sandwiched between ectoderm and endoderm in trilaminar disk Extraembryonic mesoderm - Mesoderm lying outside the embryo proper and involved in the formation of amnion, chorion, yolk sac, and body stalk.
