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.
decreased size of the second cranial nerve which is responsible for conveying visual information from the retina to the brain; it extends from the retina to the optic chiasma where part of its fibers become the optic tract and cross to the opposite side and pass to the geniculate bodies