stereoblastula

stereoblastula

[¦ster·ē·ə′blas·chə·lə]
(embryology)
A blastula that lacks a cavity, making it unable to gastrulate.
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References in periodicals archive ?
Embryos arrive in the pouch soon after fertilization, followed by formation of a stereoblastula.
The large amount of yolk contained within the eggs often results in the formation of a stereoblastula that is solidly packed with cells (Uchida and Yamada, 1968).
Recently fertilized eggs were usually a stereoblastula at the time of observation and were spherical with a smooth but not glossy surface; some were beginning to develop furrows.
About 26 days after fertilization, the stereoblastula is totally wrinkled [ILLUSTRATION FOR FIGURES 2E AND 4D OMITTED] and consists of a monostratified columnar epithelium enclosing a mesenchyme mass.
An incomplete and superficial segmentation becomes holoblastic and generates a wrinkled stereoblastula
After 12 h individual cells were no longer visible and the stereoblastula exhibited a characteristic raisin-like wrinkled appearance.