part of part of contributes to morphology of pulmonary valve pulmonary valve anulus UBERON:0005993 fibrous ring of pulmonary valve FMA:9503 pulmonary anulus The fibrous ring of the pulmonary valve that attaches the cusps of pulmonary valve to the wall of right ventricle, and which consists of portions of the fibrous scallops of the anterior, right posterior and left posterior cusps. pulmonary valvar anulus anulus of pulmonary valve fibrous ring of heart