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[[Image:Arteries.png|thumb|Arteries]]
[[Image:Arteries.png|thumb|Arteries]]
A blood vessel is a struture that is part of the circulatory system. Blood vessels carry blood to and from all of the parts of the body bringing nutrients and oxygen and removing waste and carbon dioxide. There are generally considered to be three types of blood vessels, [[arteries]], [[veins]], and [[capillaries]].
A[[ blood]] vessel is a struture that is part of the circulatory system. Blood vessels carry blood to and from all of the parts of the body bringing nutrients and oxygen and removing waste and carbon dioxide. There are generally considered to be three types of blood vessels, [[arteries]], [[veins]], and [[capillaries]].
Arteries carry blood away from the heart. The blood in arteries is higher pressure than the blood in [[vein]]s. Arteries usually carry red, oxygenated blood although there is one exeption. The pulmonary arteries carry deoxygenated blood from the heart to the lungs.
Arteries carry blood away from the heart. The blood in arteries is higher pressure than the blood in [[vein]]s. Arteries usually carry red, oxygenated blood although there is one exeption. The pulmonary arteries carry deoxygenated blood from the heart to the lungs.