Understanding how cells organize and coordinate to form the tissues and organs in living organisms (morphogenesis) is a basic question in developmental biology. The morphogenesis requires a number of cellular processes that occur in a coordinated way in small groups of cells, including proliferation, migration, differentiation, growth, and reposicionamento rearrangement of cells within the tissue. The end result of all these processes is to form a body-dimensional structure-from the initial flat structure which are the first cells of the embryo. (more...)