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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 masticatory muscle morphology
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Accession:MP:0004234 term browser browse the term
Definition:any structural anomaly of any of the muscles responsible for the movement of the jaws during mastication, including the masseter, temporal, and medial and lateral pterygoid muscles

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  mammalian phenotype 5417
    muscle phenotype 199
      abnormal muscle morphology 98
        abnormal skeletal muscle morphology 24
          abnormal facial muscle morphology 0
            abnormal masticatory muscle morphology 0
              abnormal masseter muscle morphology + 0
              abnormal pterygoid muscle morphology + 0
              abnormal temporalis muscle morphology + 0
              absent masticatory muscles 0
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