SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Superior vena cava
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Inferior vena cava
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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: -Your upper body veins send blood to your superior vena cava and your lower body veins empty blood into your inferior vena cava.
Detailed explanation-3: -Deoxygenated blood from the lower half of the body enters the heart from the inferior vena cava while deoxygenated blood from the upper body is delivered to the heart via the superior vena cava.
Detailed explanation-4: -The superior vena cava carries blood from the head, neck, arms, and chest. The inferior vena cava carries blood from the legs, feet, and organs in the abdomen and pelvis. The vena cava is the largest vein in the body.
Detailed explanation-5: -The pulmonary artery carries oxygen-poor blood to the lungs to receive oxygen. The pulmonary veins carry oxygen-rich blood from the lungs to the left atrium.