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Question

Describe the following blood vessels: artery, vein and capillary.

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Solution

Blood vessels are tubular structures present throughout the body in which blood flows. There are three main types of blood vessels namely arteries, veins, and capillaries.
  • Arteries carry blood from the heart to different parts of bodies. Blood here flows in high pressure, so they are thick-walled. All arteries except pulmonary artery carry oxygenated blood.
  • Veins carry blood from different parts of the body to the heart. They are thin-walled than arteries. Except for the pulmonary vein, all veins carry deoxygenated blood.
  • Capillaries are the fine branching blood vessels that form a network between the arteries and veins.

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