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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:increased forebrain size
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Accession:MP:0012139 term browser browse the term
Definition:greater than average size of the anterior of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes especially the cerebral hemispheres, the thalamus, and the hypothalamus and especially in higher vertebrates is the main control center for sensory and associative information processing, visceral functions, and voluntary motor functions)
Synonyms:exact_synonym: enlarged forebrain;   enlarged prosencephalon;   expanded forebrain;   expanded prosencephalon;   increased prosencephalon size

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  mammalian phenotype 5372
    nervous system phenotype 361
      abnormal nervous system morphology 209
        abnormal brain morphology 136
          abnormal brain size 33
            increased brain size 16
              increased forebrain size 0
                forebrain hyperplasia 0
                increased forebrain volume 0
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