| A | B |
|---|
| Aorta | Largest artery in the body |
| Veins | Carry blood back to the heart |
| Arteries | Carry blood from the heart |
| Left Ventricle | The strongest chamber of the heart |
| Right Ventricle | Pumps blood to the lungs |
| Atria | Top chambers of the heart |
| Upper Vena Cava | Brings blood back from the head and arms |
| Valves | Flaps of tissues that control movement of blood |
| Red Blood Cells | Contain hemoglobin and carry oxygen |
| White Blood Cells | Fight infection and disease |
| Bone Marrow | Produces red blood cells |
| Septum | Wall of tissue that separates right and left sides of the heart |
| Hypertension | High blood pressure |
| A,B,AB,O | Four blood groups |
| Pacemaker | Controls normal heart rhythm |
| Fibrin | Helps blood clot |
| Capillaries | Where nutrients and wastes are transferred to the cells |
| Right Atrium | Receives blood from the body |
