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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:abnormal bilaminar embryonic disk morphology
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Accession:MP:0012103 term browser browse the term
Definition:any structural anomaly of the flattened, almost circular bilaminar plate of cells formed when the inner cell mass (aka embryoblast) forms two epithelial layers, each of a distinct lineage, separated by an extracellular basement membrane: the external (dorsal) layer is called the epiblast and the internal (ventral) layer is called the hypoblast (aka primitive endoderm); together, they compose the bilaminar embryonic disc
Synonyms:exact_synonym: abnormal bilaminar embryonic disc morphology;   abnormal embryonic disc morphology;   abnormal embryonic disk morphology;   abnormal embryonic shield morphology;   abnormal germinal disc morphology;   abnormal germinal disk morphology

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  mammalian phenotype 5373
    embryo phenotype 6
      abnormal embryo morphology 2
        abnormal embryonic tissue morphology 1
          abnormal bilaminar embryonic disk morphology 0
            abnormal embryonic epiblast morphology + 0
            abnormal primitive endoderm morphology + 0
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