Ivy Tech Anatomy and Physiology II (APHY 102) Heart Practice Test

The main idea here is identifying which valves connect atria to ventricles, the valves that allow blood to flow from atria into the ventricles and prevent backflow when the ventricles contract. Those are the tricuspid valve on the right and the bicuspid (mitral) valve on the left. They are the atrioventricular valves. The semilunar valves—the pulmonary and aortic semilunar valves—sit between the ventricles and the great arteries and prevent backflow from those arteries into the ventricles. So the AV valves are the tricuspid and bicuspid (mitral). They open during ventricular filling (diastole) and close when the ventricles contract (systole) to keep blood moving forward.