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

See Examples For:

mitral valve

The results broadened the concern beyond isolated thickening of the mitral valve, although animal findings cannot determine what happens in people taking standard doses of antidepressants.

From Science Daily ● Jul. 12, 2026

But research published in 2023 suggests this chemical messenger may also influence a small structure that performs a vital job during every heartbeat: the mitral valve.

From Science Daily ● Jul. 12, 2026

Dogs and cats that have been selectively bred for appearance and livestock bred for productivity show higher rates of conditions such as diabetes and mitral valve disease.

From Science Daily ● Nov. 17, 2025

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

From Barron's ● Sep. 26, 2025

The left-side valve is the mitral valve, that between the right auricle and ventricle the tricuspid valve.

From How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use by Archibald Williams