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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.

Term:Fasciculations
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Accession:HP:0002380 term browser browse the term
Definition:Fasciculations are observed as small, local, involuntary muscle contractions (twitching) visible under the skin. Fasciculations result from increased irritability of an axon (which in turn is often a manifestation of disease of a motor neuron). This leads to sporadic discharges of all the muscle fibers controlled by the axon in isolation from other motor units.
Comment:This finding can be visible clinically and can be demonstrated by electromyography (EMG).
Synonyms:exact_synonym: Fasciculation;   Muscle fasciculation;   Muscle twitch
 alt_id: HP:0002468;   HP:0007092
 xref: MESH:D005207;   SNOMEDCT_US:82470000;   UMLS:C0015644



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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
              Fasciculations 0
                Facial-lingual fasciculations + 0
                Limb fasciculations 0
                Tongue fasciculations 0
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