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 in the endoplasmic reticulum of skeletal and cardiac muscle, i.e. the complex of vesicles, tubules, and cisternae that form a continuous structure around striated myofibrils, with a repetition of structure within each sarcomere