Place the correct word in each statement and then put the statements in order so that they describe the path of blood through the heart. First, blood enters the right atrium. The superior vena cava and the inferior vena cava, which carry oxygen-poor blood that is relatively low in oxygen, enter the right atrium. The right atrium sends blood through the tricuspid valve to the right ventricle. The right ventricle sends blood through the pulmonary semilunar valve into the pulmonary trunk and through the two pulmonary arteries to the lungs. In the lungs, oxygen is added to the blood and carbon dioxide is removed. Oxygen-rich blood from the lungs enters the left atrium. The left atrium sends blood through the bicuspid (mitral) valve to the left ventricle. The left ventricle sends blood through the aortic semilunar valve into the aorta, which carries the blood to the rest of the body.