has part has part has_part characteristic of part of has modifier abnormal mitral valve morphology MPheno.ontology any structural anomaly of the valve that is located between the left atrium and the left ventricle of the heart, and contains two cusps, the anterior cusp and the posterior cusp, attached to the outer fibrous ring (annulus) abnormal left atrioventricular valve morphology abnormal left AV valve morphology mitral valve dysplasia MP:0000286 abnormal bicuspid valve morphology Fyler:1508 abnormal mitral valvar morphology abnormal atrioventricular valve morphology morphology abnormal mitral valve