Blood from heart is carried by certain tube-like structure. What are they? Give the structure and functions of different types of blood carrying tubes.
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blood vessels: Blood moves through many tubes called arteries and veins, which together are called blood vessels. The blood vessels that carry blood away from the heart are called arteries.
arteries (say: AR-tuh-reez) and veins (say: vayns): If you've ever seen a road map, you probably saw many roads going here, there, and everywhere. Your body has a highway system all its own that sends blood to and from your body parts. It's called the circulatory system and the roads are called arteries and veins. Arteries, which usually look red, carry blood away from the heart. Veins, which usually look blue, return blood to the heart
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