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 flat, thin muscle lying beneath the skin on the lateral surface of the maxillary bone; it arises from the maxillary bone, over the dorsum of the nose, and runs cranioventrally to insert partly on the wing of the nostril and partly into the lateral part of the upper lip; it acts to dilate the nostrils and elevate and retract the upper lip