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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 arrector pilli muscle morphology
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Accession:MP:0010679 term browser browse the term
Definition:any structural anomaly of the bundles of smooth muscle fibers that connect the hair follicle with the papillary layer of the dermis, and serve to pull hair shafts erect
Synonyms:exact_synonym: abnormal arrector mucle of hair;   abnormal errector muscle of hair;   abnormal errector pilli muscle

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  mammalian phenotype 5380
    integument phenotype 168
      abnormal skin adnexa morphology 166
        abnormal pilosebaceous unit morphology 8
          abnormal arrector pilli muscle morphology 0
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