mitral valve

American  

noun

Anatomy.

1. the valve between the left atrium and left ventricle of the heart, consisting of two triangular flaps of tissue, that prevents the blood from flowing back into the atrium.

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mitral valve British  

noun

1. Also called: bicuspid valve.  the valve between the left atrium and the left ventricle of the heart, consisting of two membranous flaps, that prevents regurgitation of blood into the atrium

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mitral valve Scientific  

/ mī′trəl /

1. A valve of the heart, composed of two triangular flaps, that is located between the left atrium and left ventricle. The mitral valve regulates blood flow between the two chambers.

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Etymology

Origin of mitral valve

First recorded in 1685–95

Example Sentences

It is moving into other areas of cardiovascular disease, such as mitral valve replacement and tricuspid valve replacement.

From Barron's • Sep. 26, 2025

In addition to the transcatheter tricuspid valve repair procedure, the medical center's cardiac services offer several minimally invasive catheter-based mitral valve procedures.

From Science Daily • Apr. 9, 2024

The clipping device used is similar to a successful one used to treat patients with damage to another part of the heart, the mitral valve.

From New York Times • Mar. 4, 2023

The valve separating the chambers on the left side of the heart valve is called the biscuspid or mitral valve.

From Textbooks • Jun. 9, 2022

Notice that the mitral valve has only two flaps.

From A Practical Physiology by Blaisdell, Albert F.