what is blood vessel?
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Answer:
A tube through which the blood circulates in the body. Blood vessels include a network of arteries, arterioles, capillaries, venules, and veins.
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Explanation:
Blood vessels are tubular structures present in animals (namely, humans). Their function is to carry blood, a fluid like substance which helps in transportation of substances in our bodies. There are mainly three types of blood vessels:
(i) Arteries (ii) Veins (iii) Capillaries
Arteries carry blood from the heart to the rest of the body, while Veins carry blood back to the heart. Capillaries carry the blood deep into tissues for exchange of waste, nutrients, oxygen etc.
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