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Chambers and valves of the heart - Mayo Clinic
A typical heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart. The heart valves are gates at the chamber openings. They keep blood flowing in the right direction.
Heart disease - Symptoms and causes - Mayo Clinic
Aug 13, 2024 · Heart failure. This is one of the most common complications of heart disease. The heart can't pump enough blood to meet the body's needs. Heart attack. A heart attack can happen if a piece of plaque in an artery or a blood clot moves to the heart. Stroke. The risk factors that lead to heart disease also can lead to an ischemic stroke.
Enlarged heart - Symptoms & causes - Mayo Clinic
May 4, 2022 · Heart failure. Heart failure may occur if the left lower heart chamber (left ventricle) becomes enlarged. In heart failure, the heart can't pump the proper amount of blood throughout the body. Blood clots. Blood clots may form in the lining of the heart. A blood clot that forms on the right side of the heart can travel to the lungs (pulmonary ...
Heart rate: What's normal? - Mayo Clinic
Oct 8, 2022 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.
Bicuspid aortic valve - Overview - Mayo Clinic
Dec 7, 2024 · Surgery is done to repair or replace the aortic valve. The type of surgery done depends on the specific heart valve condition and your symptoms. Aortic valve replacement. The surgeon removes the damaged valve. It's replaced with a mechanical valve or a valve made from cow, pig or human heart tissue. The tissue valve is called a biological ...
Chambers and valves of the heart - Mayo Clinic
The upper chambers — the right and left atria — receive incoming blood. The lower chambers — the right and left ventricles — pump blood out of your heart. The heart valves, which keep blood flowing in the right direction, are gates at the chamber openings (for the tricuspid and mitral valves) and exits (for the pulmonary and aortic valves).
Heart murmurs - Symptoms & causes - Mayo Clinic
May 27, 2022 · A heart structure problem present before birth (congenital heart defect) causes irregular blood flow between the heart chambers or blood vessels. In adults, worrisome heart murmurs are usually due to heart valve problems that develop later in life (acquired heart valve disease). Things that can damage the heart valves include: Calcium deposits.
Pacemaker - Mayo Clinic
Jul 8, 2023 · The heart's electrical system typically controls the heartbeat. Electrical signals, called impulses, move through the heart chambers. They tell the heart when to beat. Changes in heart signaling may happen if the heart muscle is damaged. Heart signaling problems also may be caused by changes in genes before birth or by using certain medicines.
Heart valve surgery - Mayo Clinic
Nov 4, 2023 · If your heart valve can't be repaired and other treatments aren't an option, the valve might need to be replaced. To replace a heart valve, a surgeon removes the heart valve and replaces it with a mechanical valve or a valve made from cow, pig or human heart tissue. Valves made from living tissue are called biological tissue valves.
Heart arrhythmia - Symptoms and causes - Mayo Clinic
Oct 13, 2023 · A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. A heart arrhythmia occurs when the electrical signals that tell the heart to beat don't work properly. The heart may beat too fast or too slow. Or the pattern of the heartbeat may be inconsistent. A heart arrhythmia may feel like a fluttering, pounding or racing heartbeat.