gastrulation


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Related to gastrulation: organogenesis

gastrulation

 [gas″troo-la´shun]
the process by which a blastula becomes a gastrula or, in forms without a true blastula, the process by which three germ cell layers are acquired.

gas·tru·la·tion

(gas'trū-lā'shŭn),
Transformation of the blastula or blastocyst into the gastrula; the development and invagination of the embryonic germ layers. In human embryos, gastrulation is the process by which the bilaminar embryonic disk is converted into a trilaminar embryonic disk.

gastrulation

/gas·tru·la·tion/ (gas″troo-la´shun) the process by which a blastula becomes a gastrula or, in forms without a true blastula, the process by which three germ cell layers are acquired. In humans, the conversion of a bilaminar to a trilaminar embryonic disc (ectoderm, mesoderm, endoderm).

gastrulation

[gas′trəlā′shən]
Etymology: Gk, gaster, stomach
the development of the gastrula in lower animals and the formation of the three germ layers in the embryo of humans and higher animals. It is characterized by an extensive series of coordinated morphogenetic movements within the blastula or blastocyst by which the primitive body plan of the organism is established and by which the areas that later differentiate into various structures and organs are in their proper position for development.

gas·tru·la·tion

(gas'trū-lā'shŭn)
Transformation of the blastula or blastocyst into the gastrula; the development and invagination of the embryonic germ layers.

gastrulation

the process by which the BLASTULA forms the GASTRULA.

gastrulation

the process by which a blastula becomes a gastrula or, in forms without a true blastula, the process by which three germ cell layers are acquired.
References in periodicals archive ?
Twisted gastrulation is a conserved extracellular BMP antagonist.
During gastrulation, the massive and precisely orchestrated movements of the cells which shape the embryo are called morphogenetic movements (from the Greek words morphi and genesis), he explained.
p38 and a p38-interacting protein are critical for downregulation of E-cadherin during mouse gastrulation.
The developmental process of notochord in zebrafish embryos starts around 6 hpf, when notochord cells are specified during gastrulation, then these specified cells come to lie in the midline, and expand and straighten in the trunk by 24 hpf (Odenthal et al.
Gastrulation is the stage early during embryonic development that follows implantation of the embryo into the uterine wall, which in mice is completed by day 6.
Most of these developmentally arrested embryos died during late blastula to early gastrula while some made it through gastrulation, but terminated development at the characteristic shield stage of development where an obvious anterior to posterior axis had formed.
The CNS and the skull form from the ectoderm and mesoderm, with development of the cerebellum beginning as early as gastrulation i.
109) In particular, exposure at key stages of early development such as gastrulation and neonatal development are disproportionately prone to result in adverse response.
CYP26A1 was found to be expressed during gastrulation in zebrafish [20] and a human homologue was cloned [27].
Cell differentiation during gastrulation begins the process of histogenesis and continues into the formation of organs.