mitralization mi·tral·i·za·tion (mī’trə-lĭ-zā’shən)
A straightening of the left heart border in a chest x-ray because of increased prominence of the convexity formed by the main pulmonary artery and its left main branch or the left atrial appendage or both.
- Mitral orifice
mitral orifice n. See left ventricular opening.
noun, Pathology. 1. abnormal narrowing of the mitral valve usually resulting from disease, as rheumatic fever, and obstructing the free flow of blood from the atrium to the ventricle. mitral stenosis n. A narrowing of the mitral valve usually caused by rheumatic fever and resulting in an obstruction to the flow of blood from the […]
noun, Anatomy. 1. the valve between the left atrium and left ventricle of the heart, consisting of two triangular flaps of tissue, that prevents the blood from flowing back into the atrium. noun 1. the valve between the left atrium and the left ventricle of the heart, consisting of two membranous flaps, that prevents regurgitation […]
- Mitral valve prolapse
mitral valve prolapse n. A condition in which there is excessive retrograde movement of the mitral valve into the left atrium during left ventricular systole, often allowing mitral regurgitation.