convergent extension involved in gastrulation

Go to external page http://purl.obolibrary.org/obo/GO_0060027


The morphogenetic process in which an epithelium narrows along one axis and lengthens in a perpendicular axis usually resulting in the formation of the three primary germ layers, ectoderm, mesoderm and endoderm. [ GOC:dph http://www.ncbi.nlm.nih.gov/pubmed/12062082 ]