Which of the following is not a characteristic of arteries-They carry oxygen rich blood-Blood flows at high pressure-They have thick elastic walls-They have valves to prevent back flow-

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Arteries

Which of the ...

Question

Which of the following is not a characteristic of arteries?

They carry oxygen rich blood

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Blood flows at high pressure

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They have thick elastic walls

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They have valves to prevent back flow

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Solution

The correct option is D They have valves to prevent back flow
Arteries carry oxygen rich blood from the heart to all parts of the body. Since the heart pumps blood into the arteries the blood flow is always rapid and at high pressure. The arteries have to withstand the high pressure at which heart is pumping blood. Hence they have thick elastic walls. Veins carry the blood from all parts of the body to heart. The blood flow in the veins are comparitively at a low pressure. Veins have valves to prevent the back flow of blood and so that they flow only towards the heart.

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Similar questions

Question 21
Choose the correct statement that describes arteries.

(a) They have thick elastic walls, blood flows under high pressure; collect blood from different organs and bring it back to the heart.
(b) They have thin walls with valves inside, blood flows under low pressure and carries blood away from the heart to various organs of the body.
(c) They have thick elastic walls, blood flows under low pressure; carry blood from the heart to various organs of the body.
(d) They have thick elastic walls without valves inside, blood flows under high pressure and carries blood away from the heart to different parts of the body.

Q. Blood in arteries flow under high pressure. Therefore, they have _______ and elastic walls.

Q. Blood in arteries flow under high pressure. Therefore, they have and elastic walls.

Blood flows at a high pressure through arteries. Hence, it makes sense for arteries to have ___ and elastic walls.

Q. Assertion: Arteries have thick elastic walls.
Reason: Blood flow in arteries is rapid and at high pressure.

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