Answer:
There are 4 valves in your heart.
Step-by-step explanation:
The Tricuspid Heart Valve
The Pulmonic Heart Valve
The Mitral Heart Valve
The Aortic Heart Valve
The Tricuspid Heart Valve
The tricuspid valve is the first valve that blood flows through in the heart. It is one of two atrioventricular valves, meaning that it is located between the atrium and the ventricle, in this case, on the right side of the heart. It is made of three flaps, or leaflets, that work together to stop and start the flow of blood.3
The leaflets are attached to tiny muscles, called the papillary muscles, that strengthen the movement of the leaflets. The tricuspid valve opens when the atrium contracts, allowing blood to flow into the ventricle.4
The tricuspid valve, like the mitral valve, is one of the common sites of valve prolapse and regurgitation, conditions which may make medical intervention a necessity.
The Pulmonic Heart Valve
The pulmonic valve is the second valve of the heart. Like the aortic valve, it is also referred to as a semilunar valve, because of its shape. It lies between the right ventricle and the pulmonary artery, which takes blood to the lungs. When the right ventricle contracts, the pulmonic valve opens, allowing blood to flow to the lungs.5
The Mitral Heart Valve
The mitral valve, is the third valve of the heart. Like the tricuspid valve, it is an atrioventricular valve, meaning it rests between the left atrium and the left ventricle. Oxygenated blood passes through the mitral valve when the atrium contracts, allowing blood to flow from the upper chamber into the lower ventricle.6
The mitral valve is composed of two leaflets, or flaps, that prevent blood from flowing into the ventricle too soon. When the atrium contracts, the mitral valve opens, allowing blood to move into the ventricle.6
The mitral valve, like the tricuspid valve, is a common site of valve prolapse and regurgitation, conditions that may require medical intervention.
The Aortic Heart Valve
The aortic valve is the fourth and final heart valve, lying between the left ventricle and the aorta. The valve is composed of three leaflets, working together to stop blood from entering the aorta prematurely. The aortic valve opens when the ventricle contracts, allowing blood to move from the heart and start the journey to the rest of the body.