| A | B |
|---|
| Heart | Organ made up of cardiac muscle tissue. |
| Atrium | The upper chambers of the heart. |
| Ventricles | The lower chambers of the heart. |
| Septum | Muscular wall that separates the right and left side of the heart. |
| Pulmonary Circulation | The flow of blood from the heart to the lungs and back to the heart. |
| Coronary Circulation | The flow of blood to the tissues and cells of the heart. |
| Systemic Circulation | The flow of blood from the heart to the body systems and back to the heart. |
| Vein | Blood vessels that contain valves and carry blood back to the heart. |
| Arteries | Vessels that carry blood away from the heart. |
| Capillaries | Microscopic blood vessels that reach every cell in the body. |
| Aorta | Largest artery in the body. |
| Vena Cava | Largest vein in the body. |
| Pulmonary Artery | Only artery that carries oxygen poor blood. |
| Pulmonary Vein | Only vein that carries oxygen rich blood. |
| Atherosclerosis | A condition in which fatty deposits build up on arterial walls. |
| Hypertension | High blood pressure. |
| Cardiac Arrest | Heart Attack |
