3 doctors weighed in:
How does the bicuspid valve function?
3 doctors weighed in

Dr. Alon Gitig
Internal Medicine - Cardiology
1 doctor agrees
In brief: May be normal
The aortic valve is comprised of three leaflets, or cusps, that swing open and closed.
Approximately 1% of the population is born with only 2 cups. These swing open and shut in a similar fashion. Depending on the precise architecture of the 2 cusps, there may be increased turbulence of blood flow through the valve, and over time more wear and tear leading to thickening/obstruction, or leaks.

In brief: May be normal
The aortic valve is comprised of three leaflets, or cusps, that swing open and closed.
Approximately 1% of the population is born with only 2 cups. These swing open and shut in a similar fashion. Depending on the precise architecture of the 2 cusps, there may be increased turbulence of blood flow through the valve, and over time more wear and tear leading to thickening/obstruction, or leaks.
Dr. Alon Gitig
Dr. Alon Gitig
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Dr. Bennett Werner
Internal Medicine - Cardiology
In brief: Mitral valve
Books call it the bicuspid valve.
Doctors call it the mitral valve. It opens to allow filling of the left ventricle during diastole. It closes when the lv contracts (during systole) to prevent oxygenated blood from returning to the left atrium (and lungs via the pulmonary veins), promoting emptying of the lv through the aortic valve & aorta.

In brief: Mitral valve
Books call it the bicuspid valve.
Doctors call it the mitral valve. It opens to allow filling of the left ventricle during diastole. It closes when the lv contracts (during systole) to prevent oxygenated blood from returning to the left atrium (and lungs via the pulmonary veins), promoting emptying of the lv through the aortic valve & aorta.
Dr. Bennett Werner
Dr. Bennett Werner
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