germ layers Ectoderm Surface ectoderm login to view 11 more bullets Neuroectoderm - CNS and brain login to view 7 more bullets Neural Crest - PNS and nearby non-neural structures login to view 13 more bullets Endoderm Epithelium lining of login to view 6 more bullets Liver Parathyroid Thyroid follicular cells Thymus Pancreas Parafollicular (C) cells of thyroid Mesoderm Muscle (smooth, cardiac, and skeletal) Dermis and subcutaneous layers of skin Bone, cartilage, and connective tissue Dura mater Serous linings of body cavities login to view 1 more bullet Spleen Cardiovascular structures Lymphatics Laryngeal cartilage Blood: RBCs, WBCs, Kupffer cells, and microglia Urogenital structures login to view 2 more bullets Kidneys Adrenal cortex Defects Types of errors login to view 10 more bullets Craniopharyngioma login to view 1 more bullet Mesodermal defects VACTERL login to view 6 more bullets