Artery |
Veins |
1. Arteries carry blood from the heart to the body organs. |
1. Veins carry blood from body organs to the heart. |
2. Arteries have thick walls. |
2. Veins have comparatively thin walls. |
3. Blood flows with a force in the arteries. |
3. Blood flow is very slow and without any force. |
4. There are no valves in the arteries. |
4. Veins have valves which allow the flow of blood in one direction only and check and back flow. |
Fig. 6.25. A—T.S. of Artery. B—T.S. of Vein