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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:fused first pharyngeal arch
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Accession:MP:0010335 term browser browse the term
Definition:the first arch fails to fully divide along the midline
Synonyms:exact_synonym: first branchial arch fusion;   fused first branchial arch

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  mammalian phenotype 5380
    craniofacial phenotype 47
      abnormal craniofacial morphology 47
        abnormal craniofacial development 10
          abnormal pharyngeal arch morphology 0
            abnormal first pharyngeal arch morphology 0
              fused first pharyngeal arch 0
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