BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
CARDIOVASCULAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the role of veins in the cardiovascular system?
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Carry blood away from the heart
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Carry blood back to the heart
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Carry blood to the lungs
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Allows the exchanges of gases, nutrients and wastes between blood and the tissues
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Explanation:
Detailed explanation-1: -The veins carry deoxygenated blood and carbon dioxide back to the heart, which sends the blood to the lungs. Your lungs get rid of the carbon dioxide when you exhale.
Detailed explanation-2: -As cells use the oxygen and nutrients delivered by the arteries they create waste products, such as carbon dioxide. The veins then pick up this waste and deliver it around the body for it to be disposed of and then deliver the deoxygenated blood back to the heart.
Detailed explanation-3: -Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
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