The four chambers of the heart are connected by the aorta, pulmonary artery, pulmonary veins, and superior and inferior vena cava. The heart is the driving force in the circulatory system, located above the diaphragm, between the two lungs and to the left; the heart has four chambers respectively for the left ventricle, right ventricle, left atrium, right atrium; the left ventricle is connected to the aorta, the right ventricle is connected to the pulmonary artery, the left atrium is connected to the pulmonary vein, the right atrium is connected to the superior and inferior vena cava. The main role of the heart is to pump blood to organs and tissues to supply oxygen and various nutrients, and take away the end-products of metabolism, so that the cells can maintain normal metabolism and function; the four chambers of the heart each have their own structural characteristics and functional role. If you find any structural abnormality of the heart, it is recommended that you consult a regular hospital, complete the relevant examinations, and under the guidance of a physician.