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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:Abnormal great auricular nerve morphology
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Accession:HP:3000048 term browser browse the term
Definition:Any structural anomaly of a great auricular nerve.
Comment:The great auricular nerve originates from the cervical plexus and ascends to the posterior inferior region of the parotid gland, where it divides into several small branches. The nerve supplies sensation for an extensive area of the face including the skin over the parotid gland and the mastoid process and the surface of the external ear. The great auricular nerve winds around the posterior aspect of the sternocleidomastoid muscle. After perforating the deep fascia, it ascends upon the sternocleidomastoid muscle beneath the platysma to the parotid gland, where it divides into an anterior and a posterior branch. The anterior branch provides sensory innervation to the skin overlying the parotid gland and communicates with the facial nerve in the substance of the gland. The posterior branch innervates the skin over the mastoid and the posterior surface of the auricle except at its upper part.
Synonyms:xref: UMLS:C4073256


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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system morphology 0
          Abnormal peripheral nervous system morphology 0
            Abnormal peripheral nerve morphology by anatomical site 0
              Abnormal great auricular nerve morphology 0
                Greater auricular nerve thickening 0
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