Question

Differentiate between arteries and veins.

Answer 1

Blood vessels:

1. Heart is the muscular organ that pumps blood and transports it through an intricate system of circulatory blood vessels.
2. The circulatory system also known as the cardiovascular system pumps and circulates blood from heart to the lungs and all body parts .
3. The heart, blood vessels and blood make up the circulatory system.
4. The heart pumps the blood and the blood vessels carry the blood from the heart.
5. The crucial function of the circulatory system includes transportation of respiratory gases, nutrients and hormones throughout the body.
6. Blood vessels are tube-like structures that ease the passage of blood through them.
7. There are three types namely, arteries, veins and capillaries.
8. Arteries and veins are the major blood vessels whose functions are connected directly with the heart.
9. They are larger in size than the capillaries.
10. Capillaries are the blood vessels that run throughout the body.
11. They are the most delicate and finest of all blood vessels.
12. They are only about 8 to 10 micrometers in diameter.
13. They function in transporting blood, nutrients and respiratory gases to the body cells.
14. They connect the arteries with veins.

Differentiation between blood vessels:

S.NO	Arteries	Veins
1.	Carry blood away from the heart.	Carry blood back to the heart.
2.	Carries oxygen-rich blood.	Carries deoxygenated blood.
3.	Supplies oxygenated blood to the body parts	Collects deoxygenated blood from the body cells to the heart.
4.	All arteries carry oxygenated blood except pulmonary artery.	All veins carry deoxygenated blood except pulmonary vein
5.	Have thick walls.	Have thin walls.
6.	Blood flows with high pressure.	Blood flows with low pressure.
7.	Major arteries include aorta, vena cava and pulmonary artery.	Major veins include deep veins, superficial veins and pulmonary vein.