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Mitral Valve

Valve between the left atrium and left ventricle of the heart.

PubMed Health Glossary
(Source: National Institutes of Health)

Illustration of a cross-section of a healthy human heart, including the heart valves. Click to enlarge

The inside of the heart, showing blood flow: red for oxygen-rich blood and blue for oxygen-poor blood National Institutes of Health

Terms to know

Aorta
The largest artery in the body. It carries oxygen-rich blood away from the heart to vessels that reach the rest of the body.
Aortic Valve
A valve that is located between and controls the flow of blood from the left ventricle of the heart and the aorta.
Atria
The chambers of the heart, to which the blood returns from the circulation.
Heart Ventricles
The lower right and left chambers of the heart.
Inferior Vena Cava
A large vein that empties into the heart. It carries blood from the legs and feet and from organs in the abdomen and pelvis.
Interventricular Septum
Interventricular septum is the stout wall separating the lower chambers (the ventricles) of the heart from one another.
Pulmonary Artery
The pulmonary artery and its branches deliver blood rich in carbon dioxide (and lacking in oxygen) to the capillaries that surround the air sacs.
Pulmonary Valve
A valve that is located between, and controls the flow of blood from, the right ventricle of the heart and the pulmonary artery.
Pulmonary Veins
The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
Superior Vena Cava
The large vein that carries blood from the head, neck, arms, and chest to the heart.
Tricuspid Valve
The valve consisting of three cusps situated between the right atrium and right ventricle of the heart.

Related conditions

Terms to know

Aorta
The largest artery in the body. It carries oxygen-rich blood away from the heart to vessels that reach the re...
Aortic Valve
A valve that is located between and controls the flow of blood from the left ventricle of the heart and the a...
Atria
The chambers of the heart, to which the blood returns from the circulation....
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