Question

What are structural and functional difference of arteries, veins and capillaries?

SCERT Telangana Class 10 Biology Respiration

Answer 1

Structural difference:

*The arteries have thick and more muscular walls.They are deeply placed   in the body
*The veins have thin and less muscular walls.They are usually   superficially placed in the body.
*The capillary is a very narrow blood vessel whose walls have a single layer of cells. The walls are very thin.

Functional difference:

*The arteries carry the blood away from the heart .
*The veins carry blood towards the heart.
*The capillaries help in the exchange of nutrients,waste products and   gases between the blood and the body fluids 

Answer 2

VIENS:-

{1} they carry blood towards the heart from the organs.

{2} they are comparitively slim.

{3} bolld flows at high pressure.

{4} have valves in them.

{5} carry de-oxygenated blood

{6} execption:-pulmonary vien

ARTERIES:-

{1}carry blood away from heart to organs.

{2} comparitively thick

{3} low pressure

{4} valves are absent

{5} carry oxygenated blood  

{6} exception:- pulmonary artery