part of part of contributes to morphology of tricuspid valve tricuspid valve anulus FMA:9500 tricuspid valvar anulus The fibrous ring of the tricuspid valve that attaches the cusps of tricuspid valve to the heart, and which consists of portions of the fibrous scallops of the anterior cusp (infundibular cusp), the posterior cusp (marginal cusp), and the septal cusp (medial cusp). fibrous ring of tricuspid valve UBERON:0005997 anulus of tricuspid valve tricuspid anulus fibrous ring of heart