heart weight heart ventricle morphological measurement heart ventricle weight 2012-02-15T06:46:40Z CMO:0000688 JSmith The heaviness of one or both ventricles of the heart, that is, the lower chambers of the heart that pump blood away from the heart either to the lungs to be oxygenated or, once oxygenated, to the rest of the body, or the degree to which one or both ventricles of the heart are drawn toward the earth by gravity. clinical_measurement_ontology