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 tubuloacinar seromucous glands located principally in the submucosa of the trachea whose excretory ducts pass through the lamina propria to the tracheal lumen; they secrete mucus, lysozyme, defensins, and other agents that help protect the lungs from particles and infectious agents; in the mouse, they are restricted to the upper trachea, more specifically to the regions between the first few cartilage rings, with the precise distribution depending on genetic background