STRUCTURE AND FUNCTION OF ARTERIES, CAPILLARIES AND VEINS
Arteries carry blood away from the heart.
They carry oxygenated blood except pulmonary artery which carries deoxygenated blood to the lungs.
Arteries have a thick, muscular wall, which has elastic and collagen fibres that resist the pressure of the blood flowing in them.
The high pressure is due to the pumping action of the heart.