part_of part of part of in lateral side of in_lateral_side_of embryonic structure neural groove neural fold EMAPA:16142 EMAPA:16146 EMAPA:16151 EMAPA:16155 EMAPA:16159 EMAPA:16162 EMAPA:16288 EMAPA:16292 EMAPA:16295 EMAPA:16299 EMAPA:16303 EMAPA:16307 EMAPA:16528 XAO:0004087 SCTID:361461009 UMLS:C0814993 One of the two elevated edges of the neural groove[GO,MP]. medullary fold FMA:295618 EHDAA2:0001249 neuronames:1364 uberon UBERON:0005062 NCIT:C34223 Wikipedia:Neural_fold In front of the primitive streak two longitudinal ridges, caused by a folding up of the ectoderm, make their appearance, one on either side of the middle line. These are named the neural folds; they commence some little distance behind the anterior end of the embryonic disk, where they are continuous with each other, and from there gradually extend backward, one on either side of the anterior end of the primitive streak. Also, after differentiation it turns into the neural tubes[Wikipedia:Neural_fold]. epithelial fold embryonic tissue developing anatomical structure ecto-epithelium lateral structure