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.
any structural anomaly of the preimplantation embryo of mammals consisting of a hollow sphere of cells with an outer cell layer (trophoblast) that forms the placenta, a fluid-filled cavity (blastocoele), and a cluster of cells on the interior (the inner cell mass) that forms the embryo