part of part of contributes to morphology of aortic valve aortic valve anulus The fibrous ring of the aortic valve that attaches the cusps of aortic valve to the wall of left ventricle, and which consists of portions of the fibrous scallops of the posterior, right anterior and left anterior cusps. fibrous ring of aortic valve aortic anulus anulus of aortic valve UBERON:0005991 aortic valvar anulus FMA:9502 fibrous ring of heart