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.
an expansion in the lumen volume of the wide short vein formed from the confluence of the superior mesenteric, inferior mesenteric and splenic veins, which then divides into the right and left branches which ramify with the liver