blastosphere


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blastosphere

(blăs′tə-sfîr′)
n.

blastosphere

See blastula.

blastula

A hollow sphere formed during the early embryonic development of higher animals—which follows the morular stage of embryogenesis—in which dividing cells line up on the outside and are bathed by fluid within the adjacent cavity (blastocoele). In animals where cleavage involves the whole egg, the blastula consists of a ball of cells with a hollow centre.

blastosphere

see BLASTULA.
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