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प्रश्न
Describe the structural differences between an artery and a vein.
Mention two structural differences between an artery and a vein.
उत्तर
| Artery | Vein |
| An artery is a vessel that carries blood away from the heart towards any organ. | A vein is a vessel which conveys the blood away from an organ towards the heart. |
| An artery has thick muscular walls. | A vein has thin muscular walls. |
| It has a narrow lumen. | It has a broad lumen. |
| There are no valves. | Thin pocket-shaped valves are present in the veins. |
| Arteries progressively decrease in size and branch to form arterioles. Arterioles further break up to form capillaries. | Capillaries unite to form branches called Venules. Venules further unite to form veins. |
संबंधित प्रश्न
You can see some blood vessels on the outside of the hands specially in older people. Are those veins or arteries ? How can you confirm your answer ?
Describe the functions of White blood cells.
Name the organ from which oxygenated blood goes into the heart.
Given below is a diagrammatic representation of certain types of blood vessels in human body.
Where can such an arrangement be found as an example - in lungs or in heart walls?
State the Function: Pulmonary vein
Why do veins have thin walls as compared to arteries?
Arteries carry oxygenated blood except ______.
From where to where do the following blood vessel carry blood?
Pulmonary artery
Distinguish between the following pair on the basis of words indicated in the bracket ( ):
Arteries and Veins (Wall and lumen)
