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.
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