Heart chamber and valve diagram

1. Valves Right Atrium – atrioventricular valve Right Ventricle – pulmonary semilunar valve Left Atrium – mitral valve Left Ventricle – aortic semilunar valve HEART CHAMBER AND VALVES Blood from system enters the right atrium and exits the right ventricle into lungs. Blood enters the left atrium from lungs and exits the left ventricle into system.