| A | B |
| Pulmonary trunk | branches into the left and right pulmonary arteries and carries deoxygenated blood to the lungs |
| pulmonary veins | Oxygenated blood leaves the lungs through these four veins and travels into the left atrium |
| aortic arch | Delivers blood to the head, neck, and shoulders through the brachiocephalic trunk, the left common carotid, and the left subclavian |
| ascending aorta | begins at the aortic semilunar valve of the left ventricle |
| descending aorta | feeds inferior body regions |
| Superior vena cava | drains head, neck, shoulders, arms, chest |
| Inferior vena cava | drains most of body below diaphragm |
| Hepatic portal vein | carries blood draining the digestive system to the liver for purification and storage of absorbed nutrients |
| thrombus | blood clot |
| arteriosclerosis | A thickening and toughening of arterial walls |
| atherosclerosis | the buildup of fats in and on your artery walls |