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.
absence of the dark, nonstriated, V-shaped band (ridge) that is normally found on the underside of the tectorial membrane (TM) in the basal region of the cochlea, from which fine gelatinous trabeculae extend to fix the TM to the border cells, i.e. cells directly adjacent to the inner phalangeal cells