part of part of ventral_to developmentally_induced_by contributes to morphology of notochord neural tube mantle layer neural tube basal plate AAO:0010561 EFO:0001904 The region of the mantle layer of the neural tube that lies ventral to the sulcus limitans and contains primarily motor neurons and interneurons. UBERON:0004064 UMLS:C1511061 basal plate basal plate of neural tube motor part of neural tube spinal cord basal plate uberon ventral part of neural tube ectoderm-derived structure embryonic tissue sulcus limitans of neural tube