| 单词 |
periblastula |
| 释义 |
Periblastula periblastula[¦per·ə′blas·tyə·lə] (embryology) The blastula of a centrolecithal egg, formed by superficial segmentation. Periblastula a stage in the embryonic development of most arthropods having centrolecithal eggs. The periblastula is a vesicle whose wall consists of one layer of cells and whose cavity is filled with unbroken yolk. It forms as a result of the superficial segmentation of the egg. |
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