| umls-concept:C1817622 | skos:definition | GO: The formation of the neural tube by coalescence of mesenchymal cells followed by their conversion to epithelial cells to form a solid cord that subsequently hollows out (cavitates) to create a hollow tube. Secondary neurulation is the typical mechanism of formation of the neural tube posterior to the posterior neuropore in mammals. [GOC:ef, ISBN:0878932585] | lld:umls |
