segmented paraxial mesoderm, though also involving BMP and fibroblast growth factor (FGF) signaling. Here, retinoic acid interacts with these pathways. See also Somitomere Chordamesoderm Intermediate mesoderm Lateral plate mesoderm Mesenchyme Triploblasty List of human cell types derived from the germ layers References External links Overview at nih.gov Diagram and overview at mcgill.ca Diagram at lww.com Embryology Mesoderm