Lateral plate mesoderm Intra-embryonic coelom: -body otic cavity Intermediate cavity Intercellular Mesoderm 1. Outer layer: parietal mesoderm (体壁中胚层) surrounding the A intraembryonic cavity ntermediate groove 2. Inner layer: visceral mesoderm (脏壁中胚层)→ muscle, CT of the gut Endoderm c D 3. Cavity pericardial, pleural and peritoneal cavities Mesenchyme(间充质) cardiovascular and lymph system•Intra-embryonic coelom: →body cavity 1.Outer layer: parietal mesoderm, （体壁中胚层）surrounding the intraembryonic cavity 2.Inner layer: visceral mesoderm （脏壁中胚层）→muscle, CT of the gut 3.Cavity: pericardial, pleural and peritoneal cavities Mesenchyme（间充质）: →cardiovascular and lymph system Lateral Plate Mesoderm