Cardiac cycle and anatomy question?

During left ventricular systole, the right ventricle is also undergoing systole. At the same time, the left and right atrium are undergoiong diastole and are filling with blood from the Vena Cava (right atrium) and pulmonary veins (left atrium). During the ejection phase of left ventricular systole, the right ventricle is also undergoing ejection. During isovolumetric contraction, the aortic, pulmonic, mitral, and tricuspid valves are all closed. During ventricular ejection, the aortic and pulmonic valves are open, tricuspid and mitral valves are closed. During the ejection phase, the coronary arteries are filling with blood.