Distinguish between Arteries and Veins
|1. They carry blood away from the heart to various parts/organs of the body.||
1. The carry blood towards the heart from various parts /organs of the body.
|2. Blood flows under great pressure.||2. Blood flows under less pressure.|
|3. They are thick-walled.||3. They are thin-walled.|
|4. Arteries branch into arterioles and further into fine capillaries||4. Venules are small vessels that continue from capillaries and merge to form veins.|
|5. These are deeply situated except a few like the radial, brachial, femoral, etc. which are superficially located.||5. Mostly superficial in location.|
|6. They carry oxygenated blood, except pulmonary artery.||6. They carry deoxygenated blood, except pulmonary vein.|
|7. Tunica media is comparatively thicker.||7. Tunica media is comparatively thinner.|
|8. They do not have valves.||8. They have valves to prevent the backflow of the blood.|
Concept: Blood Vessels
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