Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
The bicuspid valve, also known as the mitral valve, is one of the four main valves in the heart. It regulates blood flow between the left atrium and left ventricle.
5 Must Know Facts For Your Next Test
The bicuspid valve has two leaflets or flaps.
It prevents backflow of blood from the left ventricle to the left atrium during ventricular contraction.
The bicuspid valve is located on the left side of the heart.
It opens when the left atrium contracts, allowing blood to flow into the left ventricle.
Malfunctioning of this valve can lead to conditions such as mitral valve prolapse or regurgitation.
Review Questions
Related terms
Tricuspid Valve: A valve with three flaps that regulates blood flow between the right atrium and right ventricle.
Aortic Valve: A valve that controls blood flow from the left ventricle into the aorta.
Pulmonary Valve: A valve that manages blood flow from the right ventricle into the pulmonary arteries.