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DeCS
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Descriptor English:
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Blastocyst
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Descriptor Spanish:
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Blastocisto
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Descriptor Portuguese:
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Blastocisto
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Synonyms English:
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Blastocysts
Embryo, Preimplantation
Embryos, Preimplantation
Preimplantation Embryo
Preimplantation Embryos
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Tree Number:
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A16.254.500
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Definition English:
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A post-MORULA preimplantation mammalian embryo that develops from a 32-cell stage into a fluid-filled hollow ball of over a hundred cells. A blastocyst has two distinctive tissues. The outer layer of trophoblasts gives rise to extra-embryonic tissues. The inner cell mass gives rise to the embryonic disc and eventual embryo proper. |
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Indexing Annotation English:
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Mammalian only; non-mammalian, use BLASTULA; /transpl: coordinate BLASTOCYST (NIM with no qualifiers) + EMBRYO TRANSFER (IM); do not confuse with BLASTOCYTES see BLASTOMERES
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Entry Combination - descr/qualif English:
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Blastocyst/transplantation use Embryo Transfer
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History Note English:
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74
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Allowable Qualifiers English:
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Record Number:
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1779
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Unique Identifier:
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D001755
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Occurrence in VHL:
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Similar:
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DeCS
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