Difference between Vena cava and Aorta:
| Vena cava | Aorta |
|---|---|
| Vena cava is a large vein. | Aorta is the largest artery. |
| It carries deoxygenated blood from the upper and lower parts of the body to the right auricle of the heart. | It leaves the left auricle of the heart carrying oxygenated blood to all parts of the body through its branches. |