HISTOLOGY
BLOOD VESSELS
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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: -Veins have one-way valves instead of muscles, to stop blood from running back the wrong way. 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-2: -The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart.
Detailed explanation-3: -However, the pulmonary vein carries oxygenated blood from the lungs to the heart. Vena cava-One of the two great veins that carries deoxygenated blood from the body to the right atrium of the heart.
Detailed explanation-4: -As blood travels through the body, oxygen is used up, and the blood becomes oxygen poor. 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.