How your heart works
EXTERNAL
INTERNAL
Explore the heart by selecting a dot
Right coronary artery The right coronary artery supplies blood to the right side of the heart, and the sinoatrial node, which regulates the heart rhythm.
Left main
coronary arteryThe left main coronary artery supplies blood to the left side of the heart muscle (the left ventricle and left atrium).
Left circumflex artery The circumflex artery branches off from the left main coronary artery. It supplies blood to the back of the heart.
Left anterior descending branch The left anterior descending artery branches off the left main coronary artery and supplies blood to the front of the heart.
Explore the heart by selecting a dot
Vena cava The large veins that carry deoxygenated blood from your body into the heart.
Aorta The aorta is the largest artery in the body, it carries oxygenated blood from your heart to your body.
Right atriumThe chamber that receives blood from your vena cava before pumping it into your right ventricle.
Left atriumThe chamber that receives blood from your lungs before pumping it into your left ventricle.
Right ventricleThis chamber pumps the blood to your lungs to enable your blood to receive oxygen.
Left ventricle This chamber of the heart pumps oxygenated blood into your aorta. It is the largest chamber in your heart.