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( Blood vessel)
The blood vessels are part of the circulatory system and function to transport blood throughout the body. The most important vessels in the system are the capillaries, the microscopic vessels which enable the actual exchange of water and chemicals between the blood and the tissues, while the conduit vessels, arteries and veins, carry blood away from the heart and through the capillaries or back towards the heart, respectively. The arteries and veins have the same basic structure. There are three layers, from inside to outside while the capillaries have only one thick cell When blood vessels connect to form a region of diffuse vascular supply it is called an anastomosis (pl. anastomoses). Anastomoses provide critical alternative routes for blood to flow in case of blockages. Laid end to end, all the blood vessels in an average human body would encircle the earth twice, a distance of approximately 100,000 kilometers.[1]
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Blood vessel Subcategories
Blood vessel Articles
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