The heart is located under the rib cage, to the left of the breastbone (sternum) and between the lungs. Your heart is an amazing organ. Shaped like an upside-down pear, this fist-sized powerhouse pumps five or six quarts of blood each minute to all parts of your body.
The Heart and Blood Vessels
Large red vessel - the aorta
Large artery that carries blood from of the left ventricle to the arteries of the body
Large blue vessel - vena cava
(includes the superior and inferior vena cava)
Large vein that empties blood into the right atrium of the heart.