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*Cells that have broken free of the epiblast make an epithelial to mesenchymal transition.
 
*Cells that have broken free of the epiblast make an epithelial to mesenchymal transition.
 
**This is achieved by breaking of the basal lamina, followed by breaking of intercellular connections. Cells undergoing this transition change from being regularly shaped to being irregularly shaped.
 
**This is achieved by breaking of the basal lamina, followed by breaking of intercellular connections. Cells undergoing this transition change from being regularly shaped to being irregularly shaped.
*When the cells reach the hypoblast, they interchalate with cells of the hypoblast and revert back to their original  
+
*When the cells reach the hypoblast, they interchalate with cells of the hypoblast and revert back to their original epithelial state.
epithelial state.
      
===Mesodermal Ingression===
 
===Mesodermal Ingression===
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