Glossary/Anatomy

Left Atrium.

The upper left chamber of the heart that receives oxygenated blood from the lungs via the pulmonary veins. Blood flows from the left atrium through the mitral valve into the left ventricle. Enlarges in mitral valve disease and atrial fibrillation.

Definition

What is left atrium?

The upper left chamber of the heart that receives oxygenated blood from the lungs via the pulmonary veins. Blood flows from the left atrium through the mitral valve into the left ventricle. Enlarges in mitral valve disease and atrial fibrillation.

Related Terms

Related glossary terms.

Left Atrial Appendage Closure
A procedure to seal off the left atrial appendage, a small pouch in the heart where blood clots c...
Mitral Valve
The valve between the left atrium and left ventricle that has two leaflets (anterior and posterio...
Atrial Fibrillation
The most common heart rhythm disorder, in which the upper chambers (atria) beat irregularly and o...
See Also

Related conditions we review.

Left Main Coronary Disease
LVAD (Left Ventricular Assist Device)
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