first heart valve
The first heart valve, known as the tricuspid valve, is located between the right atrium and the right ventricle of the heart. Its primary function is to prevent the backflow of blood as it moves from the atrium to the ventricle during the heart's pumping cycle.
The tricuspid valve is made up of three flaps, or cusps, that open and close in response to pressure changes within the heart. Proper functioning of this valve is essential for maintaining efficient blood circulation and ensuring that oxygen-poor blood is directed to the lungs for oxygenation.