Which statement is correct for most veins in the human body?
a) They carry blood at high pressure.
b) They carry oxygenated blood .
c) They have valves.
d) They take blood away from the heart.
Answers
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1
Answer:
option a is correct
Explanation:
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3
The correct answer is option:
c) They have valves.
Veins have valves to ensure deoxygenated blood does not travel back into the organs.
In arteries, the blood pressure is too high for oxygenated blood to flow back into the heart when the blood is being carried into other organs, thus they do not have valves.
c) They have valves.
Veins have valves to ensure deoxygenated blood does not travel back into the organs.
In arteries, the blood pressure is too high for oxygenated blood to flow back into the heart when the blood is being carried into other organs, thus they do not have valves.
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