<prompt> Area of mitral orifice in adults is:6-8 cm25-2 cm24-6 cm21-4 cm2  <response>: Answer is C 4-6 cm2: The normal area of mitral valve is 4-6 em2. Mitral Valve pathology Area Normal Mitral Valve 4-6 cm2Q Mild Mitral Valve 2 cm? Severe Mitral Stenosis 1.3 cm2Q Critical Mitral Stenosis 1 cm2 Q Aoic Valve pathology Area Normal Aoic Valve 2.6 - 3.5 cm2Q Mild Aoic Stenosis 1.5 - 2 cm2 Moderate Aoic Stenosis 1 - 1.5 cm2 Severe Aoic Stenosis 0.8cm2 