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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 size trait
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Accession:VT:0005406 term browser browse the term
Definition:Any measurable or observable characteristic related to the physical magnitude of the organ that pumps blood through the body or any of its component structures.
Synonyms:related_synonym: cardiac size trait

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  vertebrate trait 4
    organ system trait 4
      circulatory system trait 1
        circulatory system morphology trait 0
          cardiovascular system morphology trait 0
            heart morphology trait 0
              heart size trait 0
                heart atrium size trait + 0
                heart mass 0
                heart ventricle size trait + 0
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