The aortic valve is located between the left ventricle and the aorta.Īs the heart muscle contracts and relaxes, the valves open and shut. This valve is located between the left atrium and the left ventricle. The pulmonary valve is located between the right ventricle and the pulmonary artery. This valve is located between the right atrium and the right ventricle. Valves are actually flaps (leaflets) that act as one-way inlets for blood coming into a ventricle and one-way outlets for blood leaving a ventricle. Normal valves have 3 flaps (leaflets), except the mitral valve. The valves prevent the backward flow of blood. Blood passes through a valve before leaving each chamber of the heart. The heart has 4 chambers, 2 upper chambers (atria) and 2 lower chambers (ventricles). Anatomy and Function of the Heart Valves What are heart valves?
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