Ключевые слова: anatomy, aorta, biology, blood flow, cardiac arrest, cardiologist, cardiology, coronary artery, edical illustration, four chambers, healthcare and medicine, heart, heart attack, heart disease, heart health, heart icon, heart surgery, human heart, human internal organ, human vein heartbeat, left ventricle, muscular organ, organ, pulmonary trunk, pulmonary veins, pumping, right ventricle, superior vena cava,