State the difference between arteries and veins. (6 points)
shivi200913:
Arteries Vein They carry oxygenated blood (blood that carries a large amount of oxygen) rich in nutrients. They carry deoxygenated blood (blood that carries a large amount of carbon dioxide) rich in waste materials. They carry blood from the heart to the different parts of the body. They carry blood from the different parts of the body to the heart. They have thick muscular walls and narrower lumen. They have thinner walls and lumen is not narrow
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Explanation:
Arteries:
- Involved in carrying oxygenated blood except for pulmonary arteries.
- Consists of three distinct layers, which are rigid, thicker and highly muscular.
- Located deep within the body.
- Red in colour.
- Carry blood away from the heart to various parts of the body.
- High pressure, as the blood flows by the pumping pressure of the heart.
Veins:
- Involved in carrying deoxygenated blood except for pulmonary veins.
- Consists of three distinct layers, which are thinner and less muscular.
- Peripherally located closer to the skin.
- Blue in colour.
- Carry blood towards the heart from the various parts of the body.
- Low pressure, as the blood flows by the capillary action of the veins.
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