Anatomy of the Heart Glossary of Terms for an Anatomy of the Heart Aorta the main artery of the body, which receives blood from the left ventricle. Inferior vena cava the main vein returning blood from the feet, legs, pelvic region and abdomen back to the heart. Left ventricle the left lower chamber of the heart that pumps oxygenated blood to the body.
Pulmonary trunk carries blood low in oxygen from the right atrium to the lungs.
Right atrium the right upper chamber of the heart that receives blood low in oxygen from the body and then pumps it to the right ventricle. Right ventricle the right lower chamber of the heart that pumps blood low in oxygen to the lungs via the pulmonary arteries. Superior vena cava the main vein returning blood from the upper extremities, neck and head back to the heart.