Question
Arteries and veins.
| Arteries | Veins |
| 1. Arteries carry blood away from the heart to the tissues of the body. | 1. Veins carry blood from the tissues of the body back to the heart. |
| 2. Arteries are located deeper within the body. | 2. Veins are usually located superficially beneath the surface of the skin. |
| 3. Arteries are thick walled | Veins are thin walled. |
| 4. Arteries do not have valves. | 4. Veins have valves. |
| 5. Arteries would generally remain open if blood flow stopped, due to their thick muscular layer. | 5. Veins would collapse if blood flow stops. |
| 6. Except pulmonary artery, all arteries carry oxygenated blood. | 6. Except pulmonary vein, all veins carry deoxygenated blood. |
| 7. Arteries are more muscular than veins, which helps in transporting blood that is full of oxygen efficiently to the tissues. | 7. Veins are less muscular than arteries, but contain valves to help keep blood flowing in the right direction, usually toward the heart. |
| 8. There is maximum blood pressure in the arteries. | 8. There is minimum blood pressure in the veins. |
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