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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Involuntary movements
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Accession:HP:0004305 term browser browse the term
Definition:Involuntary contractions of muscle leading to involuntary movements of extremities, neck, trunk, or face.
Synonyms:exact_synonym: Involuntary muscle contractions
 alt_id: HP:0007120
 xref: SNOMEDCT_US:102542000;   UMLS:C0235086

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system physiology 0
          Abnormality of movement 0
            Involuntary movements 0
              Alien limb phenomenon 0
              Athetosis + 0
              Chorea + 0
              Chvostek sign 0
              Clonus + 0
              Fasciculations + 0
              Hemiballismus 0
              Myoclonus + 0
              Paroxysmal dyskinesia 0
              Self-mutilation of tongue and lips due to involuntary movements 0
              Tremor + 0
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