1.

State two differences between arteries and veins.​

Answer»

ANSWER:

Arteries: Arteries carry oxygenated BLOOD, AWAY from the heart except pulmonary artery. These are thick-walled, HIGHLY muscular except arteries of cranium and vertebral column. Valves are ABSENT. Blood in arteries moves with pressure.

Veins: Veins carry deoxygenated blood, towards the heart except pulmonary veins. These arethin-walled. Valves are present which provide unidirectional flow of blood.Blood in veins moves under very low pressure.



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