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.
abnormal communications between the two lower chambers of the heart, involving the muscular septum and often occurring as multiple communications, and includes central muscular or midmuscular, apical, or marginal communications when the defect is along the RV-septal junction; any single defect observed from the LV aspect may have several openings on the RV aspect
Synonyms:
exact_synonym:
Swiss-cheese septum; VSD, Type 4; mVSD; trabecular ventricular septal defect