The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
Any quantitation of the cells and/or cell types which constitute the make-up of the spinal cord ventral horn, either of the horn-like projections of gray matter into the white matter of the spinal cord. The anterior/ventral horn contains efferent fibers innervating skeletal muscle tissue.