| A | B |
|---|
| Superior Vena Cava | Deoxygenated blood to the heart |
| Inferior Vena Cava | Deoxygenated blood to the heart |
| Right Atrium | Receives blood from vena cava's |
| Right Ventricle | Pumps blood to Pulmonary Artery |
| Pulmonary Artery | Deoxygenated blood to the lungs |
| Lungs | Oxygenates the blood |
| Pulmonary Vein | Oxygenated blood to the heart |
| Left Atrium | Receives blood from Pulmonary Artery |
| Left Ventricle | Pumps blood to Aorta |
| Aorta | Oxygenated blood to body |
