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 ...
Gastrulation
[L. 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.
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: ...
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.
Once gastrulation is complete, organogenesis begins.
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MeSH Gastrula ...
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.
The primitive gut that forms during gastrulation in the developing blastula is known as the archenteron. It develops into the digestive tract of an animal.
Full article ...
Problem 2: Events that occur during gastrulation
What DOES NOT normally happen during gastrulation?
A. ...
(ark-en-ter-on) [Gk. arch, first, or main + enteron, gut]
The endoderm-lined cavity, formed during the gastrulation process, that develops into the digestive tract of an animal.
Archezoa ...
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: Gastrula, Embryo, Organ, Cells, Cell
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