If you were tracing the path of blood from the right to the left side of the heart,you must mention the:

Question

Quizplus · Accepted Answer

The right atrium receives blood from attached veins (the superior and inferior venae cavae)that are returning O₂-poor blood to the heart from the tissues.After the blood passes through the atrioventricular valve (also called the tricuspid valve),the right ventricle pumps it through the pulmonary semilunar valve into the pulmonary trunk and pulmonary arteries that take it to the lungs.The pulmonary veins bring O₂-rich blood to the left atrium.After this blood passes through an atrioventricular valve (also called the bicuspid valve),the left ventricle pumps it through the aortic semilunar valve into the aorta,which takes it to the tissues.

If You Were Tracing the Path of Blood from the Right