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.
formation of spongy bone in the bony labyrinth of the ear, especially adjacent to the footplate of the stapes; it may cause bony ankylosis of the stapes, resulting in conductive hearing loss; cochlear otosclerosis results in sensorineural hearing loss