develops from develops from unilaminar epithelium embryonic structure embryonic tissue notochordal plate EHDAA2:0001278 UMLS:C1518429 EHDAA:264 The notochordal plate is the dorsal part of the notochordal process when the ventral portion breaks down. It is continuous laterally with the endoderm that composes the roof of the primitive foregut and is in contact dorsally with the neural tube. The folding off of the notochordal plate gives rise to the notochord. [Carson_JL, Dehart_DB, Developmental_Dynamics_(1994)_201:_260-278, Gesteland_K_and_Schoenwolf_GC, Inagaki_T, Morphogenesis_of_the_murine_node_and_notochordal_plate, The_prechordal_plate, Vrablic_T, see_Mueller_F_and_O'Rahilly_R, the_rostral_end_of_the_notochord_and_nearby_median_features_in_staged_human_embryos._Cells_Tissues_Organs_(2003)_173:_1-20_and_Sulik_K][VHOG] The notochordal plate is the dorsal part of the notochordal process when the ventral portion breaks down. It is continuous laterally with the endoderm that composes the roof of the primitive foregut and is in contact dorsally with the neural tube. The folding off of the notochordal plate gives rise to the notochord. VHOG:0001212 EMAPA:16101 NCIT:C34231 UBERON:0006267 TODO - check ordering; awaiting confirmation from JB notochordal process ecto-epithelium