Morphogenetic Movements in Mesenchyme | Gastrulation | Embryology
Immigration of mesodermal cells from the primitive streak in amniotes and migration of mesenchyme cells in sea urchin gastrulation can be regarded as examples of an important step in morphogenesis – the creation of mesenchyme-type tissues, which are a new structural element of an animal's body. The mesenchyme cells are not linked together, as are epithelial cells. They are free [...]