part of part of in_lateral_side_of neural groove neural fold EHDAA2:0001249 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 FMA:295618 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]. One of the two elevated edges of the neural groove[GO,MP]. UBERON:0005062 UMLS:C0814993 XAO:0004087 medullary fold uberon epithelial fold embryonic tissue ecto-epithelium lateral structure