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 in the primordial embryonic connective tissue associated with the branchial arches, consisting of mesenchymal cells supported in interlaminar jelly, that derive mostly from the mesoderm and contribute to facial and cranial nerve-associated structures