Veins: wide lumen, carry blood at low pressure, take blood to heart, have valves, carries deoxygenated blood (apart from pulmonary), Arteries: carry blood at high pressure, narrow lumen, take blood away from the heart, thick muscular walls, carries oxygenated blood (apart from pulmonary), Capillaries: one cell thick, large surface area, exchange of materials,

Veins Arteries and Capillaries N5 biology

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