How does blood flow through the heart?

Deoxygenated blood enters the heart through the superior/ inferior vena cava into the right atriumThe atria contract and blood flows through the tricuspid valve into the right ventricleThe right ventricle contracts and tricuspid valve closes pushing blood through the semilunar canal into the pulmonary artery and into the lungs to be oxygenatedOxygenated blood flows from the lungs through the pulmonary vein into the left atriumThe left atrium contracts pushing blood through the bicuspid valve into the left ventricleThe left ventricle contracts and bicuspid valve closes pushing blood through the semilunar valves into the aorta and around the body