SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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deoxygenated blood (blood without oxygen)
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oxygenated blood (blood with oxygen)
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Either A or B
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None of the above
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Detailed explanation-1: -Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.
Detailed explanation-2: -Generally, veins carry deoxygenated blood from the body to the heart, where it can be sent to the lungs. The exception is the network of pulmonary veins, which take oxygenated blood from the lungs to the heart.
Detailed explanation-3: -Arteries carry blood away from the heart, and veins carry blood towards the heart. With the exception of pulmonary blood vessels, arteries carry oxygenated blood and veins carry deoxygenated blood.
Detailed explanation-4: -Arteries carry fresh, oxygen-rich blood away from the heart to tissues throughout the body. Veins carry blood containing waste products such as carbon dioxide back through the heart to the lungs. The lungs exchange the carbon dioxide for a fresh supply of oxygen.
Detailed explanation-5: -Most arteries carry oxygenated blood, and most veins carry deoxygenated blood; the pulmonary arteries and veins are the exceptions to this rule.