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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:Suck reflex
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Accession:HP:0030906 term browser browse the term
Definition:A type of primitive reflex that is elicited by lightly touching or tapping on the lips with an object such as a tongue blade, reflex hammer, or the examiner's finger. At times the reflex is obtained merely by approaching the lips with an object. A positive suck reflex consists of sucking movements by the lips when they are stroked or touched.
Synonyms:exact_synonym: Persistent nutritive suckle swallow

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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
            Abnormal reflex 0
              Primitive reflex 0
                Suck reflex 0
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