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DeCS
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Descriptor English:
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Blastodisc
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Descriptor Spanish:
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Blastodisco
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Descriptor Portuguese:
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Blastodisco
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Synonyms English:
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Germinal Disc
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Tree Number:
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A16.331.042
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Definition English:
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A small whitish spot on the surface of the EGG YOLK where cleavage begins. Upon fertilization the cytoplasm streams from the vegetal pole away from the yolk to the animal pole where cleavage will occur. This germinal area eventually flattens into a layer of cells (BLASTODERM) that covers the yolk completely. |
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History Note English:
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2008
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Allowable Qualifiers English:
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Record Number:
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52543
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Unique Identifier:
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D054239
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Occurrence in VHL:
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Similar:
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DeCS CID-10 SciELO LILACS LIS
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