Biology - Arteries vs Veins
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| Areteries vs Veins credits: Kelvinsong (Wikimedia) under CC-BY-SA-3.0 |
Arteries and Veins are parts of closed circulatory system and both carry blood. Here follows the differences between the two:
| SNo. | Arteries | Veins |
|---|---|---|
| 1. | Blood flows away from the heart. | Blood flows towards the heart. |
| 2. | Blood flows with jerks and with great pressure. | Blood flows smoothly and with less pressure. |
| 3. | They always carry oxygenated blood except the pulmonary artery. | They always carry deoxygenated blood except the pulmonary vein. |
| 4. | Lumen of arteries is small. | Lumen of vein is large. |
| 5. | Valves are absent. | Semilunar valves are present to prevent the back flow of blood. |
| 6. | They are deep seated. | They are usually superficial. |
| 7. | Their walls are elastic, thick and muscular. | Their walls are non-elastic, thin and fibrous. |
| 8. | Non-collapsible. | Collapsible |
| 9. | Red Colour. | Bluish Red Colour |
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