| A | B |
| heart | muscular pump |
| arteries | carry blood away from the heart |
| veins | carry blood to the heart |
| capillaries | connect arteries to veins |
| arterioles | smallest arteries |
| septum | muscular wall that seperates the left side of the heart from the right. |
| ventricles | lower chambers of the heart |
| type "O" blood | universal donor |
| aorta | largest artey in the body |
| pulmonary circulation | circulates blood from heart to lungs |
| jugular veins | carry blood from head to the heart |
| pulmonary veins | only veins that carry oxygen rich blood |
| subclavian veins | carry blood to the arms |
| valves | keeps blood flowing in the right direction |
| plasma | liquid part of the blood |
| fibrin | threads that stop blood flow by plugging a hole in the vessel |
| hemoglobin | carries oxygen and makes blood red |
| vena cava | carries the deoxygenated blood from the body |
| aortic valve | seperates the ventricles from the larger vessels |
| platlets | smallest blood cells |