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 thin quadrilateral muscle occupying the interval between the maxilla and the mandible at the side of the face that forms the anterior part of the cheek or the lateral wall of the oral cavity; it compresses the cheeks against the teeth and is used in acts such as blowing; it is an assistant muscle of mastication and in neonates it is used to suckle