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- B
- Blastula
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Words related to blastula
blas·tu·la
B b -
blastocoel
the cavity within a blastula -
blastocyst
the blastula of mammals: a sphere of cells (trophoblast) enclosing an inner mass of cells and a fluid-filled cavity (blastocoel) -
blastoderm
the layer of cells that surrounds the blastocoel of a blastula -
blastodisk
germinal disk -
blastosphere
blastula -
gastrula
a metazoan embryo in an early state of germ layer formation following the blastula stage, consisting of a cuplike body of two layers of cells, the ectoderm and endoderm, enclosing a central cavity, or archenteron, that opens to the outside by the blastopore: in most animals progressing to the formation of a third cell layer, the mesoderm.