human
What are the different types of blood vessels in the human body?
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The different types of blood vessels in the human body include arteries, veins, capillaries, arterioles, venules, and lymphatic vessels. Arteries carry blood away from the heart to the rest of the body, while veins return blood back to the heart. Capillaries are the smallest blood vessels and allow for exchange of oxygen and carbon dioxide between the blood and tissues. Arterioles and venules are larger blood vessels that help regulate the flow of blood throughout the body. Lymphatic vessels transport lymph, a clear fluid that contains waste products, from the tissues to the bloodstream.