A backflow of blood from the left ventricle into the left atrium across a diseased valve in systole is:
A) AS.
B) MS.
C) MR.
D) MVP.

Question

Quizplus · Accepted Answer

The backflow of blood from the left ventricle into the left atrium is called mitral regurgitation (MR). This occurs when the mitral valve between the left atrium and left ventricle doesn't close properly during systole, causing blood to flow back into the left atrium. Aortic stenosis (AS) is a narrowing of the aortic valve, mitral stenosis (MS) is a narrowing of the mitral valve, and mitral valve prolapse (MVP) is a condition where the mitral valve doesn't close completely during systole, but neither of these conditions cause blood to backflow into the left atrium.

A Backflow of Blood from the Left Ventricle into the Left