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Gastrulation - Anatomy & Physiology (view source)
Revision as of 15:09, 25 August 2008
, 15:09, 25 August 2008→Endodermal Ingression
*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===