gastrula

• Substantivo que designa o estágio embrionário de dois folhetos que sucede a blástula, formado por invaginação, no qual a camada externa de células é o ectoderma e a camada interna se diferencia em mesoderma e endoderma.

A noun referring to the double-walled stage of an embryo that follows the blastula, formed by invagination, where the outer cell layer is the ectoderm and the inner layer differentiates into the mesoderm and endoderm.

1. Embryonic developmental stageC2formalscientific

   A phase in animal embryo development after the blastula, characterized by the formation of three germ layers through invagination, leading to the ectoderm, mesoderm, and endoderm.

   Estágio de gástrula

   • The gastrula stage marks a critical point in embryonic development when cells begin to differentiate.
   • During gastrulation, the blastula reorganizes into a multi-layered structure called the gastrula.
   • Scientists study the gastrula to understand how tissues and organs form.
   • In this experiment, the frog embryo developed into a gastrula within 24 hours.