Arteries are thicker than veins. This is because arteries carry blood away from the heart, which pumps blood at a much higher pressure than the veins that return blood to the heart. Arteries need thicker walls to withstand this pressure, while veins have thinner walls due to the lower pressure of blood flowing through them.
- Arteries are muscular, elastic tubes that carry oxygenated blood away from the heart to the rest of the body. The thick walls of arteries allow them to withstand the high pressure of blood flowing from the heart.
- Veins are thinner and less elastic than arteries. They carry deoxygenated blood back to the heart from the rest of the body. Veins have valves that help to prevent blood from flowing backward.
The difference in wall thickness is an essential part of the circulatory system's efficient operation.
