This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Mitralvalve prolapse. en Figure shows normal mitral valve The valve separates the left atrium from the left ventricle Figure shows heart with mitral valve prolapse Figure shows closeup view of mitral valve prolapse Figure shows mitral valve that allows blood to flow back into the left atrium National Heart Lung and Blood Institute