insufficiency (in-suf-fish/en-se)

The state of being insufficient for its purpose, absolute i. I. due to thickening, induration, or other change in the cardiac valves themselves, aortic i. An imperfect closure of the aortic orifice by the aortic valves. See also Corrigan's disease, under Corrigan. functional mitral i. Mitral i. due to deficient muscular contractility in the heart itself, i. of the ocular muscles. An absence of dynamical equilibrium of the ocular muscles, due either to an inherent weakne of one set of. muscles or to an elastic preponderance of another set of muscles. mitral i. That pathological condition in which the mitral valve inefficiently closes its orifice with the rhythmic action of the heart, muscular i. 1. A condition in which a muscle (especially one of the ocular muscles) is relatively weak compared with its antagonist, so that an effort on the part of this muscle is required in order to maintain equilibrium, pa ive i. of a muscle. The disabled condition of a muscle in the neighborhood of a joint when so stretched by the action of other muscles that it can not contract perfectly, relative i. The dilatation of a valvular orifice of the heart due to general stretching, as from hypertrophy due to arteriosclerosis. [Lat., in sufficient i a.']