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 any of the four muscles located above the hyoid bone in the neck; these muscles include the digastric, stylohyoid, geniohyoid, and mylohyoid muscles and are all pharyngeal muscles, with the exception of the geniohyoid muscle; they have different actions but in general assist in elevating the hyoid bone and widening the esophagus during swallowing