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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:right-to-left shunt
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Accession:MP:0031130 term browser browse the term
Definition:a right-to-left shunt allows the deoxygenated, systemic venous return to bypass the lungs and return directly to the systemic arterial circulation; the oxygen content of the systemic arterial blood falls in proportion to the volume of systemic venous blood mixing with the normal pulmonary venous return; with reduced oxygen content, even with normal cardiac output, tissue oxygen delivery falls and the work capacity of muscles is limited
Synonyms:exact_synonym: R-L shunt;   right-to-left shunting

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  mammalian phenotype 5402
    cardiovascular system phenotype 1371
      abnormal cardiovascular system physiology 1148
        abnormal blood circulation 79
          cardiovascular shunt 0
            right-to-left shunt 0
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