Four types of valves regulate blood flow through your heart that act like ‘gates’ that open and close,
making sure that blood travels in one direction through the heart.
- The tricuspid valve regulates blood flow between the right atrium and right ventricle.
- The pulmonary valve controls blood flow from the right ventricle into the pulmonary arteries, which carry blood to the lungs to pick up oxygen.
- The mitral valve lets oxygen-rich blood from the lungs pass from the left atrium into the left ventricle.
- The aortic valve opens the way for oxygen-rich blood to pass from the left ventricle into the aorta, the body’s largest artery, where it is delivered to the rest of the body.