OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC TISSUES AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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veins
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arteries
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capillaries
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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.
Detailed explanation-2: -While arteries carry oxygen-rich blood, veins carry oxygen-poor blood. Your pulmonary veins are an exception to this rule. These four veins, located between your heart and lungs, carry oxygen-rich blood from your lungs back to your heart. From there, your heart pumps the oxygen-rich blood back throughout your body.
Detailed explanation-3: -Arteries and veins link your heart to the rest of the circulatory system. Veins bring blood to your heart. Arteries take blood away from your heart. Your heart valves help control the direction the blood flows.
Detailed explanation-4: -All the veins carry deoxygenated blood except the pulmonary vein. It carries oxygenated blood from lungs to the heart.