 The inward folding of the ectoderm by virtue of mainly cell division continues until another group of cells form within the neural plate.These cells are termed dorsolateral hinge cells (DLHP), and once formed, the inward folding of the ectoderm stops.The DLHP cells function in a similar fashion as MHP cells regarding their wedge like shape, however, the DLHP cells result in the ectoderm converging.