The heart has four valves that control blood flow into and out of the heart. The aortic valve, pulmonary valve, mitral valve, and tricuspid valve function to maintain unidirectional blood flow in the heart.
The heart has four valves that control blood flow into and out of the heart. The aortic valve, pulmonary valve, mitral valve, and tricuspid valve function to maintain unidirectional blood flow in the heart.