Question

List three differentiate between artery and vein

Answer 1

artery
1) carry blood away from heart
2) thick walled
3) valves absent

• usually carry oxygenated blood (exception: pulmonary artery)
• blood is under high pressure
• present internally

veins
1) carry blood towards heart
2) thin walled
3) valves present

• usually carry deoxygenated blood (exception pulmonary vein)
• blood is under low pressure
• present superficially

Answer 2

arteries carry blood from heart to different parts of body
vein carry blood from different parts of body to heart.
arteries have thick walls as blood flows with pressure in them due to pumping action of heart.
vein have thin walls and has valves to prevent back flow of blood due to low pressure.
artery carry oxygen rich blood.
veins carry di oxygenated blood.