obsolete_left ventricle true The ventricles are the two lower chambers of the heart. The left ventricle is the chamber that receives blood from the left atrium and pumps it out under high pressure to the body via the aorta. NCIt:C12871 http://purl.obolibrary.org/obo/UBERON_0002084 use UBERON_0002084 'heart left ventricle' instead. true 2.75