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 anomaly in the process in which a developing blood vessel forms an endothelial lumen through which blood will flow; in vertebrates, the lumen of all blood vessels is lined and formed by endothelial cells; in both vasculogenesis and angiogenesis, lumen formation takes place in a cord of endothelial cells and involves a complex mechanism composed of endothelial cell repulsion at the cell-cell contacts within the endothelial cell cords, junctional rearrangement, and endothelial cell shape change