gastrulation
the formation of the gastrula stage in embryonic development by an invagination by which the future digestive tract is formed
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Gastrula
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Gastrula
(plural: gastrulae) [L. gastrula - the belly, stomach] The early embryonic stage following the blastula stage during which cell migrations form distinct germ layers.
The gastrula phase of embryonic development is seen in all animals except the sponges. It follows the blastula phase. The gastrula phase is marked by a dramatic restructuring called gastrulation.
Gastrulation
The start of gastrulation is marked by the pushing inward ("invagination") of cells in the region of the embryo once occupied by the middle of the gray crescent. This produces: ...
gastrula
(gas-troo-la) [Gk. gaster, stomach]
The two-layered, cup-shaped embryonic stage.
gastrulation ...
gastrulation - stage in animal development following cleavage characterized by extensive cell movement and rearrangement to form a "three-layered" embryo of ectoderm, mesoderm and endoderm.
gastrulation
The formation of a gastrula from a blastula.
generative cell ...
gastrulation The embryological process that results in the formation of the gastrula; results in the formation of the embryonic gut, ectoderm, and endoderm.138 ...
Gastrulation involves a series of cell migrations to positions where they will form the three primary cell layers.
Ectoderm forms the outer layer.
Endoderm forms the inner layer.
Mesoderm forms the middle layer.
One of the three primary germ layers formed in the embryo, moved into interior by cell movements during gastrulation.
broad classification of organisms that tend to share certain embryological traits; among these the formation of the "mouth first" (hence the name) during gastrulation, before the future anus.
That the two-layered gastrula is the ancestral form of all multicellular animals.
Synonym: gastrea theory.
Please contribute to this project, if you have more information about this term feel free to edit this page ...
Problem 2: Events that occur during gastrulation
What DOES NOT normally happen during gastrulation?
A. ...
The formation in the gastrula of the 3 major layers: ectoderm, mesoderm and endoderm ...
Physical mapping is proceeding toward identifying genes involved in pivotal stages of development, including gastrulation (Bernadette Holdener-Kenny, Case Western Reserve University) and skeletal development-the fused locus (Janice Rossi, ...
 See also: Embryo, Cells, Organ, Gastrulation, Cell
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