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 loose fibrous connective tissue located under the tracheal mucosa and composed of abundant blood and lymphatic vessels, diffuse lymphatic tissue and lymphatic nodules, and seromucous tracheal glands; the submucosa ends with the perichondrium of the tracheal cartilages