Source:http://linkedlifedata.com/resource/umls/id/C2265909
GO: The enlargement or overgrowth of all or part of an organ due to an increase in size of its smooth muscle cells without cell division. Physiological hypertrophy is a normal process during development, and can also occur in mature structures on demand. In the uterus, smooth muscle cells undergo hypertrophy during pregnancy. [GOC:mtg_muscle]