attaches_to constitutional_part_of regional_part_of Semilunar fibrous scallop of aortic valve anulus Region of wall of left ventricle Subaortic curtain of left ventricle FMA:9348 Intervalvar septum of left ventricle Region of wall of left ventricle which has as its parts the right and left posterior cusps of aortic valve and the anterior leaflet of mitral valve that is attached to the semilunar fibrous scallop of aortic valve anulus. fma Outflow part of left ventricle Fibrous ring of mitral valve