The human heart has four valves, aortic, mitral, pulmonary and tricuspid that control blood flow. As they open and close, they make the noise known as a heartbeat.

A heart valve (cardiac valve) is a biological one-way valve that allows blood to flow in one direction through the chambers of the heart. A mammalian heart usually has four valves.

Nov 22, 2023 · Four valves in the heart keep blood flowing in the right direction. These valves are: Aortic valve. Mitral valve. Pulmonary valve. Tricuspid valve. Each valve has flaps, called leaflets or cusps. …

May 23, 2024 · To better understand your valve condition and what your health care professional will discuss, it helps to know the role each heart valve plays in healthy blood circulation.

Feb 14, 2023 · The four valves of the heart prevent blood from flowing in the wrong direction, and open or close each time the heart beats. Learn more about them, here.

Apr 1, 2025 · Detailed anatomical description of the heart valves, including simple definitions and a labeled, full-color illustration.

Oct 5, 2025 · Heart valve disease affects the way the heart pumps blood due to defects in heart valves. This article overviews treatment with and without surgery.

Dec 13, 2025 · Explore heart valve disease causes, symptoms, diagnosis, and treatments. Learn how valve problems affect heart health and when to seek care.

Dec 4, 2024 · Heart valve disease refers to any of several conditions that prevent one or more of the valves in your heart from working right. Left untreated, heart valve disease may reduce blood flow …

What are heart valves? The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The …