The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
situs inversus of thoracic and abdominal viscera with the heart remaining normally situated on the left; usually associated with congenital cardiac abnormalities such as transposition of the great vessels and/or spleen defects including asplenia or polysplenia
Comment:
The term "levocardia" can also be used to indicate the absence of dextrocardia, and thus normal positioning of the heart, part of situs solitus, normal positioning of the organs. However, this usage is less frequent.