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The Vertebrate Trait Ontology (VT) is being developed as a collaborative effort between the Rat Genome Database at the Medical College of Wisconsin (RGD,, Mouse Genome Informatics at the Jackson Laboratory ( and the Animal QTL database at Iowa State University ( For more information about this vocabulary, or to request additions or changes, please contact us (

Term:heart morphology trait
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Accession:VT:0000266 term browser browse the term
Definition:Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ that pumps blood through the body.
Synonyms:exact_synonym: cardiac morphology trait
 xref: MP:0000266

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  vertebrate trait 6
    organ system trait 6
      circulatory system trait 1
        circulatory system morphology trait 0
          cardiovascular system morphology trait 0
            heart morphology trait 0
              endocardium morphology trait 0
              heart atrium morphology trait + 0
              heart elastic fiber morphology trait 0
              heart integrity trait + 0
              heart molecular composition trait + 0
              heart muscle morphology trait + 0
              heart orientation trait 0
              heart septum morphology trait + 0
              heart shape trait 0
              heart size trait + 0
              heart valve morphology trait + 0
              heart ventricle morphology trait + 0
              impulse conducting system morphology trait + 0
              interventricular groove morphology trait 0
              pericardium morphology trait + 0
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