The process of invagination, in embryonic development, by which a gastrula is formed.
process whereby the spherical embryo of amphibians and certain fishes becomes two-layered by invagination of part of the wall; the same process does not occur in reptiles, birds or mammals.
during embryonic development of most animals, a complex and coordinated series of cellular movements occurs at the end of cleavage. The details of these movements vary among species, but usually result in the formation of of an embryonic stage termed the gastrula. The gastrula has two primary germ layers, the ectoderm and endoderm in diploblastic animals, and three primary germ layers with the development of the mesoderm in triploblastic animals
The process of movements and infoldings of embryonic cells destined to become endoderm in early animal embryos, immediately following blastula (or blastoderm) stage, generating the blastopore.
the various movements of groups of cells that lead to the establishment of the primary germ layers in the embryo
The process of forming a gastrula. Term means "to form a gut" but implies more in development of the embryo.
Development of a blastula into a gastrula.
"Formation of the Gut". The way that the gut forms from the blastula'K' Reproductive strategy There are two forms of reproductive strategy, known as K and R. In an R strategy, many offspring are produced but little care is given to each. In a K strategy, only a few offspring are produced, but a lot of parental care is given. All organisms can be placed on a place on a line between these two extremes. In general, invertebrates are more 'R' and vertebrates are more 'K'. An oyster can produce 1/2 million eggs per year but they are just left to their own devices. An elephant has just one child every two years, but cares for it. This is because of the level of intelligence required to rear offspring successfully. The most 'K' of all animals are the great apes. Some can only have one child every five years, but this has led them down a dead end, because monkeys, who are more 'R' than the apes can produce more offspring, but they are still 'K' enough to look after them well.
The movement of cells of the inner cell mass that creates the three primary germ layers of the embryo.
the process in which a gastrula develops from a blastula by the inward migration of cells
The formation of the bi- then tri-laminar disc of the inner cell mass which becomes the early embyro.
An early stage of mammalian embryonic development in which stem cells divide into three layers called the endoderm, mesoderm and ectotoderm.
The formation of a gastrula from a blastula.
The stage of embryonic development in which blastomeres are dedicated to the development of specific organs and structures.
The process whereby the cells of the blastocyst are translocated to establish three germ layers. Also sometimes used to mark the end of the blastocyst stage and the beginning of the next stage of embryonic development. (Based on SMD)
gastrula - the belly, stomach] The process in embryonic development whereby the three primary germ layers are laid down and the gut formed through complex cell migrations.
during embryonic development of most animals a complex and coordinated series of cellular movements occurs at the end of cleavage. In humans, gastrulation results in the formation of the three primary germ layers, ectoderm, mesoderm and endoderm.
gastrulacion] the process in which the migration of cells through the bastopore produces the primitive gut and the two layered gastrula.
A step of major reorganisation of the developing embryo, coinciding time-wise with the missing of the menstrual period in the early pregnant woman, in which the third, or 'middle' layer (the mesoderm) forms. Occurs after blastulation (the transformation giving rise to the blastocyst) and before neurulation (the transformation forming the brain and spinal cord).
From Cells to Embryo has a detailed glossary of the language of embryology, a historical overview of gastrulation, and a look at future research directions complete a volume. http://IDunno4Recipes.com
The first process of movements and infoldings of the cell sheet in early animal embryos, usually immediately following blastula (or blastoderm).
Gastrulation is a phase early in the development of animal embryos, during which the morphology of the embryo is dramatically restructured by cell migration. Gastrulation varies in different phyla. Gastrulation is followed by organogenesis, when individual organs develop within the newly formed germ layers.
