Blood Vessels:

Blood Vessels. Blood vessels form a closed system of tubes that carry blood away from the heart, transport it to the tissues of the body, and then return it to the heart (Table 21.1 & Fig 21.6) Types of blood vessels. Arteries . Arterioles. Capillaries. Venules. Veins. Functions of Blood Vessels. Arteries. Carry blood to the tissues ................
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