mitral valve

noun

: a cardiac valve consisting of two triangular flaps which allow only unidirectional blood flow from the left atrium to the left ventricle

called also bicuspid valve

Examples of mitral valve in a Sentence

Recent Examples on the Web

When the tricuspid and mitral valves close, the ventricles squeeze (contract) and pump blood. —Colleen Doherty, Verywell Health, 2 Dec. 2024

This condition happens when the mitral valve opening narrows. —Kelly Burch Published, Verywell Health, 24 Oct. 2024

The mitral valve is between the left atrium (upper chamber) and the left ventricle (lower chamber). —Colleen Doherty, Verywell Health, 30 Sep. 2024

Heart disease Heart valve problems, such as mitral valve prolapse Hyperthyroidism (overactive thyroid) Stress, fear, and anxiety What Medications Can Cause Heart Palpitations at Night? Medications can also lead to palpitations, sometimes due to their effect on heart rhythm. —Mark Gurarie, Verywell Health, 16 Sep. 2024

Word History

First Known Use

1696, in the meaning defined above

Medical Definition

mitral valve

noun

: a valve in the heart that guards the opening between the left atrium and the left ventricle, prevents the blood in the ventricle from returning to the atrium, and consists of two triangular flaps attached at their bases to the fibrous ring which surrounds the opening and connected at their margins with the ventricular walls by the chordae tendineae and papillary muscles

called also bicuspid valve, left atrioventricular valve